Publications

Ahmad Raeisi Najafi’s Google Scholar profile

Journal Articles

2024

Ebrahim Maghami, Amirreza Sadighi, Ahmad Raeisi Najafi “Fracture behavior of human cortical bone with high glycation content under dynamic loading.” Journal of the Mechanical Behavior of Biomedical Materials, 106577, 2024.

Seyed Ali Rahmaninezhad, Mohammad Houshmand, Amirreza Sadighi, Kiana Ahmari, Divya Kamireddi, Reva M Street, Yaghoob Amir Farnam, Caroline L Schauer, Ahmad Raeisi Najafi, Christopher M Sales “Overcoming the inhibitory effects of urea to improve the kinetics of microbial-induced calcium carbonate precipitation (MICCP) by Lysinibacillus sphaericus strain MB284.” Journal of Bioscience and Bioengineering, 2024.

Parsa Namakiaraghi, Amirreza Sadighi, Robert Spragg, Ahmad R Najafi, Yaghoob Amir Farnam “Towards development of cement-based composites reinforced with architected 3D-printed polymers.” Construction and Building Materials, 2024: 135838.

Jonathan Gorman, Reza Pejman, Sandeep R. Kumar, Jason F. Patrick, Ahmad Raeisi Najafi “Transient topology optimization for efficient design of actively cooled microvascular materials.” Structural and Multidisciplinary Optimization, 2024: 67-60.

Seyed Ali Rahmaninezhad, Mohammad Houshmand, Amir Sadighi, Divya Kamireddi, Reva M Street, Yaghoob Amir Farnam, Caroline L Schauer, Ahmad Raeisi Najafi, Christopher M Sales “Generation of enhanced endospores for microbially induced calcium carbonate precipitation (MICCP) via thermal shock for concrete self-healing.” Construction and Building Materials, 2024: 135528.

Jordan Stolle, Christine M Harper, Kristyn K Voegele, Ahmad R Najafi, Mehrangiz Taheri, Joshua MacBain, Sorin Siegler “A statistical analysis of human talar shape and bone density distribution.” Journal of Orthopaedic Research, 2024: 1-11.

Mohammad Houshmand Khaneghahi, Seyed Ali Rahmaninezhad, Divya Kamireddi, Amirreza Sadighi, Christopher M Sales, Caroline L Schauer, Ahmad Najafi, Yaghoob Amir Farnam “Carbonate biomineralization potential of endospore-laden polymeric fibers (BioFibers) for bio-self-healing applications.” Developments in the Built Environment, 2024: 100351.

2023

Mohammad Houshmand Khaneghahi, Divya Kamireddi, Seyed Ali Rahmaninezhad, Amirreza Sadighi Caroline Schauer, Christopher Sales, Ahmad R. Najafi, Aidan Cotton, Reva Street, and Yaghoob (Amir) Farnam “Development of a nature-inspired polymeric fiber (BioFiber) for advanced delivery of self-healing agents into concrete.” Construction and Building Materials, 2023: 133765.

Amirreza Sadighi, Ebrahim Maghami, Mohammad H. Khaneghahi, Divya Kamireddi, Seyed Ali Rahmaninezhad, Yaghoob Amir Farnam, Christopher Sales, Caroline Schauer, and Ahmad R. Najafi, “Fracture analysis of multifunctional fiber-reinforced concrete using phase-field method.” International Journal of Solids and Structures, 2023: 112493.

Ebrahim Maghami, Ahmad Najafi, “Microstructural fatigue fracture behavior of glycated cortical bone.” Medical & Biological Engineering & Computing, 1-14, 2023.

Amirreza Sadighi, Moein Taghvaei, Mehrangiz Taheri, Delaney Oeth, Sorin Siegler, Thomas P. Schaer, and Ahmad R. Najafi, “Numerical analysis of the mechanical response of novel swelling bone implants in polyurethane foams.” Journal of the Mechanical Behavior of Biomedical Materials, 143, 2023.

Sorin Siegler, Moein Taghvaei, Ryan Zegarski, Giuseppe Palmese, Rena Mathew, Julia Schayes, Thomas Schaer, and Ahmad Najafi, “A porous swelling copolymeric material for improved implant fixation to bone.” Journal of Biomedical Materials Research Part B: Applied Biomaterials, 111:07, 2023.

Reza Pejman, Ahmad R Najafi, “Multiphysics topology optimization of a multifunctional structural battery composite.” Structural and Multidisciplinary Optimization, 66:46, 2023.

Nolan Black, Ahmad R Najafi, “Deep neural networks for parameterized homogenization in concurrent multiscale structural optimization” Structural and Multidisciplinary Optimization, 66:20, 2023.

2022

Ebrahim Maghami, Ahmad R Najafi, “Influence of age-related changes on crack growth trajectories and toughening mechanisms in human dentin” Dental Materials, 0109-5641, 2022.

Nolan Black, Ahmad R Najafi, “Learning finite element convergence with the Multi-fidelity Graph Neural Network” Computer Methods in Applied Mechanics and Engineering, 397, 115120, 2022.

Reza Pejman, Jonathan Gorman, Ahmad R Najafi, “Multi-physics design of a new battery packaging for electric vehicles utilizing multifunctional composites” Composites Part B, 237, 109810, 2022.

Ebrahim Maghami, Jason P Moore, Timothy O Josephson, Ahmad R Najafi, “Damage analysis of human cortical bone under compressive and tensile loadings,” Computer Methods in Biomechanics and Biomedical Engineering, 25(3), 342-357, 2022.

Timothy O Josephson, Jason P Moore, Ebrahim Maghami, Theresa A Freeman, Ahmad R Najafi, “Computational study of the mechanical influence of lacunae and perilacunar zones in cortical bone microcracking,” Journal of the Mechanical Behavior of Biomedical Materials, 105029, 2022.

2021

Urmi Devi, Reza Pejman, Zachary J Phillips, Pengfei Zhang, Soheil Soghrati, Kalyana B Nakshatrala, Ahmad R Najafi, Kurt R Schab, Jason F Patrick, “A Microvascular-Based Multifunctional and Reconfigurable Metamaterial (Adv. Mater. Technol. 11/2021),” Advanced Material Technologies, 2170062, 2021.

Urmi Devi, Reza Pejman, Zachary J Phillips, Pengfei Zhang, Soheil Soghrati, Kalyana B Nakshatrala, Ahmad R Najafi, Kurt R Schab, Jason F Patrick, “A Microvascular-Based Multifunctional and Reconfigurable Metamaterial,” Advanced Material Technologies, 2100433, 2021.

Maghami, E., Josephson, T., Moore, J., Rezaee, T., Freeman, T., Karim, L., and Najafi, A.R., “Fracture behavior of human cortical bone: Role of advanced glycation end-products and microstructural features,” Journal of Biomechanics, 110600, 2021.

Pejman, R., Sigmund, O., and Najafi, A.R., “Topology optimization of microvascular composites for active-cooling applications using a geometrical reduced-order model,” Structural and Multidisciplinary Optimization, 1-21, 2021.

Pejman, R., Kumbur, E.C., and Najafi, A.R., “Multi-physics design optimization of structural battery,” Multifunctional Materials, 4 (2), 024001, 2021.

Pejman, R., Keshavarzzadeh, V., and Najafi, A.R., “Hybrid topology/shape optimization under uncertainty for actively-cooled nature-inspired microvascular composites,” Computer Methods in Applied Mechanics and Engineering, 375, 113624, 2021.

Maghami, E., Pejman, R. and Najafi, A.R., “Fracture micromechanics of human dentin: A microscale numerical model,” Journal of the Mechanical Behavior of Biomedical Materials,  p. 104171,  2021.

Najafi A. R., Safdari M., Tortorelli D., and Geubelle P.H., “Multiscale design of nonlinear materials using a Eulerian shape optimization scheme,” International Journal for Numerical Methods in Engineering, 2021.

2020

Perumal V. I., Najafi A. R., and Kontsos A., “A Novel Digital Design Approach for Metal Additive Manufacturing to Address Local Thermal Effects,” Designs, vol. 4, no. 4, p. 41, Oct. 2020.

Pejman R., Maghami, E., Najafi A.R., “How to design a blockage-tolerant cooling network?” Applied Thermal Engineering, vol. 181, 115916, 2020.

Brandyberry D.R., Najafi A.R., Geubelle P.H., “Multiscale design of three‐dimensional nonlinear composites using an interface‐enriched generalized finite element method” International Journal for Numerical Methods in Engineering, vol. 121(12), 2806-2825, 2020.

Zacek S., Brandyberry D., Klepacki A., Montgomery C., Shakiba M., Rossol M., Najafi A., Sottos N., Geubelle P., Przybyla C., Jefferson G., “Transverse failure of unidirectional composites: sensitivity to interfacial properties” Integrated Computational Materials Engineering (ICME), Springer, 329-347, 2020.

2019

Pejman R., Aboubakr, S.H., Martin, W.H., Devi, U., Tan M.H.Y., Patrik, J.F., Najafi A.R., “Gradient-based hybrid topology/shape optimization of bioinspired microvascular composites” International Journal of Heat and Mass Transfer, vol. 144, 118606, 2019.

2018

Pety S.J., Tan M.H.Y., Najafi A.R., Gendusa C.G., Barnett P.R., Sottos N. R., Geubelle P.H., White S. R.; “Design of redundant microvascular cooling networks for blockage tolerance” Applied Thermal Engineering, vol. 131, pp. 965-976, 2018.

Tan M.H.Y., Najafi A.R., Pety, S.J., White S. R., Geubelle P.H.; “Multi-objective design of microvascular panels subject to operating constraints” Applied Thermal Engineering, vol. 135, pp. 145-157, 2018.

Najafi A.R., Dastvan R., Mchaourab H.S., Tajkhorshid E.; “Study of Conformational Transition of a Protein Secretion ABC Transporter using Molecular Dynamic” Biophysical Journal, vol.114 (3), pp. 148a-149a.

Najafi A.R., Safdari M., Tortorelli D., Geubelle P.H.; “Multiscale design of nonlinear material using a shape optimization scheme based on an Interface-enriched GFEM” In preparation.

Najafi A.R., Mahinthichaichan P., Tajkhorshid E., Shinn E., Tajkhorshid E., “Significance of gas permeation pathways through a plant water channel” In preparation.

2017

Najafi A.R., Safdari M., Tortorelli D., Geubelle P.H.; “Shape Optimization Using a NURBS-based Interface-enriched Generalized FEM” International Journal for Numerical Methods in Engineering, vol. 111, pp. 927-954, 2017.

Pety S.J., Tan M.H.Y., Najafi A.R., Barnett P.R., Sottos N. R., Geubelle P.H., White S. R.; “Carbon Fiber Composites with 2D Microvascular Networks for Battery Cooling” International Journal of Heat and Mass Transfer, vol. 115, pp. 513-522, 2017.

2016

Safdari M., Najafi A.R., Sottos N.R., Geubelle P.H.; “A NURBS-based Generalized Finite Element Scheme for 3D Simulation of Heterogeneous Materials” Journal of Computational Physics, vol. 318, pp. 373-390, 2016.

Tan M.H.Y., Najafi A.R., Pety, S.J., White S. R., Geubelle P.H.; “Gradient-based Design of Actively-cooled Microvascular Composite Panels” International Journal of Heat and Mass Transfer, vol. 103, pp. 594-606, 2016.

Sabet, A.F., Najafi A.R., Hamed, Elham, Jasiuk, I.; “Modeling of Bone Fracture and Strength at Different Length Scales – A Review” Journal of the Royal Society Interface Focus, vol. 6(1), 20150055, 2016.

Zhang K., Najafi A.R., Jin J.M., Geubelle P.H.; “An Interface-Enriched Generalized Finite-Element Analysis for Electromagnetic Problems with Non-Conformal Discretization” International Journal of Numerical Modeling: Electronic Networks, Devices and Fields, vol. 29 (2), pp. 265-279, 2016.

2015

Najafi A.R., Safdari M., Tortorelli D., Geubelle P.H.; “A Gradient-based Shape Optimization Scheme Using an Interface-enriched Generalized FEM” Computer Methods in Applied Mechanics and Engineering, vol. 296, pp. 1-17, 2015.

Chittenden M., Najafi A.R., Li J. Jasiuk, I.; “NanoIndentation and Ash Content Study of Age-Dependent Changes in Porcine Cortical Bone” Journal of Mechanics in Medicine and Biology, vol. 15, 1550074, 2015.

Safdari M., Najafi A.R., Sottos N.R., Geubelle P.H.; “A NURBS-based Interface-enriched Generalized Finite Element Method for Problems with Complex Discontinuous Gradient Fields” International Journal for Numerical Methods in Engineering, vol. 101(12), pp. 950–964, 2015.

Tan M.H.Y., Safdari M., Najafi A.R., Geubelle P.H.; “A NURBS-based Interface Enriched Generalized Finite Element Scheme for the Thermal Analysis and Design of Microvascular Composites” Computer Methods in Applied Mechanics and Engineering, vol. 283(1), pp. 1382–1400, 2015.

2013

Soghrati S., Najafi A.R., Lin J. H., Hughes K. M., White S. R., Sottos N. R. Geubelle P. H.; “Computational Analysis of Actively-cooled 3D Woven Microvascular Composites Using a Stabilized Interface-enriched Generalized Finite Element Method ” International Journal of Heat and Mass Transfer, vol. 65, pp. 153-164, 2013.

Rasoulian R., Najafi A.R., Chittenden M., Jasiuk I.; “Reference Point Indentation Study of Age-related Changes in Porcine Femoral Cortical Bone” Journal of Biomechanics, vol 46, pp. 1689-1696, 2013.

PourAkbar Saffar K., Najafi A.R., Moeinzadeh  M. H., Sudak L.; “A Finite Element Study of Crack Behavior for Carbon Nanotube Reinforced Bone Cement” World Journal of Mechanics, vol. 3, pp. 13-21, 2013.

2011

Najafi A.R., PourAkbar Saffar K., Arshi A. R., Mallakin E., Katouzian H.R., Eslami M. R.,  Moeinzadeh  M. H.; “Propagation of Microcracks in Bovine Osteonal Cortical Bone”, Akademeia, vol. 1 (1): ea 103, 2011.

2010

PourAkbar Saffar K., Arshi A.R., JamilPour N., Najafi A.R., Rouhi G., Sudak L.; “A Cross-Linking Model for Estimating Young’s Modulus of Artificial Bone Tissue Grown on Carbon Nanotube Scaffold” Journal of Biomedical Materials Research A, vol. 94A, pp. 594–602, 2010.

2009

PourAkbar Saffar K., Arshi A.R., Najafi A.R., Rouhi G., Rafii-Tabar H., “Carbon Nanotubes Applications in Bone Tissue Engineering: A Review” Amirkabir Journal of Science and Technology, vol. 70A, pp. 45-52, 2009.

Najafi A.R., Arshi A. R., Kaveh PorAkbar Saffar, Eslami M. R., Fariborz S., Moeinzadeh M. H.; “A Fiber-Ceramic Matrix Composite Material Model for Osteonal Cortical Bone Micromechanics Fracture: General Solution of Microcracks Interaction” Journal of the Mechanical Behavior of Biomedical Materials, vol. 2, pp. 217-223, 2009.

2008

PourAkbar Saffar K., JamilPour N., Najafi A.R., Rouhi G., Arshi A.R., A. Fereidoon, “A Finite Element Model for Estimating Young’s Modulus of Carbon Nanotube Reinforced Composites Incorporating Elastic Cross-Links” International Journal of Aerospace and Mechanical Engineering vol. 2, No. 3, pp. 172-175, 2008.

Najafi A.R., Mallakin E., PourAkbar Saffar K., Katouzian H.R., Arshi A.R., Eslami M.R.; “Fracture Test of Bovine Cortical Bone, Evaluation of Bone Toughness Properties and Consideration of Bone Microstructure Effect on Fracture Behavior” Amirkabir Journal of Science and Technology, vol. 68A, pp. 1-9, 2008.

2007

Najafi A.R., Arshi A. R., Eslami M. R., Fariborz S., Moeinzadeh M. H.; “Micromechanics Fracture in Osteonal Cortical Bone: A Study of the Interactions between Microcrack Propagation, Microstructure and the Material Properties” Journal of Biomechanics, vol 40, pp. 2788-2795, 2007.

Najafi A.R., Arshi A. R., Eslami M. R., Fariborz S., Moeinzadeh M. H.; “Haversian Cortical Bone Model with Many Radial Microcracks: An Elastic Analytic Solution” Medical Engineering and Physics, vol. 29, pp. 708–717, 2007.

Najafi A.R., Arshi A. R., Eslami M. R., Fariborz S.; Moeinzadeh M. H.; “The Interaction Between Microcrack Propagation Trajectory and Microstructure and Material Property of Haversian cortical Bone” Iranian Journal of Biomedical Engineering, vol 1(3), pp. 177-188, 2007 (In Persian).

2006

Najafi A.R., Arshi A. R., Eslami M. R., Fariborz S.; Moeinzadeh M. H.; “Micromechanics Fracture of Haversian Cortical Bone: An Analytical Approach” Transaction of ISME, vol 7, No 1, pp. 17-30, 2006.

2005

Najafi A.R., Arshi A. R., Eslami M. R., Fariborz S., Moeinzadeh M. H.; “Microcracks Interaction in Haversian Cortical Bone” Amirkabir Journal of Science and Technology, vol. 16, No. 61-A, pp. 47-55; 2005.

Papers in Proceedings

Rahmaninezhad SA, Khaneghahi MH, Farnam YA, Schauer CL, Najafi A, Street RM, Sadighi A, Kamireddi D, Sales CM; “Understanding the importance of endosporulation methods for generating endospores that can resist harsh conditions and produce calcite in bio self-healing of concrete” MATEC Web of Conferences, 2023.

Khaneghahi MH, Kamireddi D, Rahmaninezhad SA, Schauer CL, Sales CM, Najafi A, Cotton A, Sadighi A, Farnam YA; “Development of bio-inspired multi-functional polymeric-based fibers (BioFiber) for advanced delivery of bacterial-based self-healing agent in concrete” MATEC Web of Conferences, 2023.

Devi U., Pejman R., Phillips Z.J., Nakshatrala K.B., Najafi A.R., Schab K.R., Patrick J.F.; “A Multifunctional and Reconfigurable Microvascular Composite” Proceedings of the American Society for Composites—Thirty-Sixth Technical Conference on Composite Materials, 2021.

Pejman R., Najafi A.R.; “Network redundancy: a key design factor for cooling networks” International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Austin, Texas, USA, August 17, 2020.

Najafi A.R., Safdari, M., Tortorelli D., Geubelle, P.; “Material Design Using a NURBS-based Shape Optimization” 57th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, San Diego, California, USA, January 4-8, 2016.

Najafi A.R., Coppola A., Soghrati S., White S. R., Sottos N. R., Geubelle P. H.; “Microvascular Composite Skin Panels for Hypersonic Aircraft” 55th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, National Harbor, Maryland, USA, January 13-17, 2014.

Najafi A.R., Soghrati S., Sottos N. R. White S. R., Geubelle P. H.; “Computational Design of Actively-Cooled Microvascular Composite Skin Panels for Hypersonic Aircraft” 54th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, Boston, Massachusetts, USA, April 8-11, 2013.

Soghrati S., Najafi A.R., Hughes K. M., Thakre P., Duarte C.,  Sottos N. R. White S. R., Geubelle P. H.; “Computational Design of Actively-Cooled Microvascular Composite for High Temperature Applications” 53th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, Honolulu, Hawaii, USA, April 23-26, 2012.

Najafi A.R., Pashaee A., Majd S., Zoljanahi Oskui I., Bohluli B.;” Optimization of Screw Positioning in Mandible during Bilateral Sagittal Split Osteotomy Using Finite Element Method” The 26th Southern Biomedical Engineering Conference (SBEC 2010), University of Maryland, Maryland, MD, USA, May 1-2, 2010.

Presentations

2024

Raeisi Najafi A. & Black N. ; “Multiscale structural optimization using machine learning surrogate models for second-order homogenization “ 16th World Congress on Computational Mechanics and 4th Pan American Congress on Computational Mechanics (WCCM-PANACM), Vancouver, July 21 – 26, 2024.

Black N., & Raeisi Najafi A.; “Multiscale structural optimization with strain gradient effects using second order homogenization “ 16th World Congress on Computational Mechanics and 4th Pan American Congress on Computational Mechanics (WCCM-PANACM), Vancouver, July 21 – 26, 2024.

Gorman J., Black N., Pejman R., & Raeisi Najafi A.; “Design of a Structural Battery Composite with a Bi-Continuous 2-phase Matrix Using a Virtual Temperature Constrained Topology Optimization “ 16th World Congress on Computational Mechanics and 4th Pan American Congress on Computational Mechanics (WCCM-PANACM), Vancouver, July 21 – 26, 2024.

Sadighi A., Taghvaei M., Taheri M., Oeth D., Boyes M., Siegler S., Schaer T., & Raeisi Najafi A.; “The hygro-mechanical response of swelling bone implants in artificial bones“ 19th International Symposium on Computer Methods in Biomechanics and Biomedical Engineering (CMBBE 2024), Vancouver, July 30 – August 1, 2024.

Maghami E., Sadighi A. & Raeisi Najafi A.; “Fracture behavior of the microstructure of glycated cortical bone under cyclic loading“ 19th International Symposium on Computer Methods in Biomechanics and Biomedical Engineering (CMBBE 2024), Vancouver, July 30 – August 1, 2024.

Sadighi A., Houshmand M., Rahmaninezhad A., Kamireddi D., Farnam Y.A., Sales C., Schauer C., & Raeisi Najafi A.; “Fracture response of BioFiber-reinforced concrete (BioFRC)“ Engineering Mechanics Institute Conference (EMI 2024), Chicago, May 28-31, 2024.

Lee HW. & Raeisi Najafi A.; “Prediction of microbial-induced calcium carbonate precipitation and its application in self-healing cementitious material“ Engineering Mechanics Institute Conference (EMI 2024), Chicago, May 28-31, 2024.

Lee HW. & Raeisi Najafi A.; “Modeling the uncoupled damage-healing behavior of self-healing cementitious material with phase-field method“ Engineering Mechanics Institute Conference (EMI 2024), Chicago, May 28-31, 2024.

Snyder I., Black N., & Raeisi Najafi A.; “Multiscale structural optimization for applications in thermal stability and actuation” Engineering Mechanics Institute Conference (EMI 2024), Chicago, May 28-31, 2024.

Meng L. & Raeisi Najafi A.; “Bound-constrained optimization using Lagrange multiplier for a length scale insensitive phase field fracture model” Engineering Mechanics Institute Conference (EMI 2024), Chicago, May 28-31, 2024.

Meng L. & Raeisi Najafi A.; “A computational study of the fracture initiation and fracture propagation using the revisited phase field model” Engineering Mechanics Institute Conference (EMI 2024), Chicago, May 28-31, 2024.

Ashkpour A. & Raeisi Najafi A.; “Mode I fracture load prediction of components weakened by symmetrical and asymmetrical rounded-tip V-notches using the phase field method” Engineering Mechanics Institute Conference (EMI 2024), Chicago, May 28-31, 2024.

Gorman J., Black N., Pejman R., & Raeisi Najafi A.; “Topology Optimization of Structural Battery Composites Using a Virtual Temperature Constraint to Ensure Bi-Continuous Material Distributions“, Engineering Mechanics Institute Conference 2024 (EMI2024), Chicago, May 28-31, 2024.

Black N. & Raeisi Najafi A.; “Second-order homogenization for multiscale structural optimization applications“, Engineering Mechanics Institute Conference (EMI 2024), Chicago, May 28-31, 2024.

Raeisi Najafi A., & Black N.; “ Stress constrained design of hierarchical structures using second-order homogenization and machine learning“, Engineering Mechanics Institute Conference (EMI 2024), Chicago, May 28-31, 2024.

Taheri M., Taghvaei M., Sadighi A., Zegarski R., Raeisi Najafi A., Schaer T., & Siegler S.; “Fixation strength of Swelling Co-Polymeric Anchors in Artificial bone“, 70th Annual Meeting of Orthopaedic Research Society (ORS 2024), Long Beach, February 2-6, 2024.

Taheri M., Oeth D., Boyes M.,Taghvaei M., Sadighi A., Raeisi Najafi A., Schaer T., & Siegler S.; “Biocompatibility and osteointegration of a swelling copolymeric material for Bone Anchoring applications“, 70th Annual Meeting of Orthopaedic Research Society (ORS 2024), Long Beach, February 2-6, 2024.

2023

Maghami E., Sadighi A. & Raeisi Najafi A.; “Effects of high glycation due to diabetes on fracture behavior of human cortical bone under dynamic loading” 46th Meeting of American Society of Biomechanics (ASB 2023), Knoxville, August 8-11, 2023.

Sadighi A., Khaneghahi M.H., Kamireddi D., Rahmaninezhad S.A., Schauer C.L., Sales C.M., Farnam YA Raeisi Najafi A.; “Fracture Analysis of Multifunctional Fiber-Reinforced Concrete Using Phase-Field Method” USNCCM17: US National Congress on Computational Mechanics, Albuquerque, New Mexico, July 23-27, 2023.

Pejman R. & Raeisi Najafi A.; “Design of Bioinspired Microvascular Materials Using Computationally Efficient Topology Optimization for Thermal Management Applications” USNCCM17: US National Congress on Computational Mechanics, Albuquerque, New Mexico, July 23-27, 2023.

Gorman J., Vitola R., Holder G., Pejman R., & Raeisi Najafi A.; “Comparison of Free-Form Density-Based and Geometric Projection Topology Optimization for Dynamic Loading Conditions” USNCCM17: US National Congress on Computational Mechanics, Albuquerque, New Mexico, July 23-27, 2023.

Speck T., Pejman R. & Raeisi Najafi A.; “Multiphysics Simulations on Structural Battery Composites” USNCCM17: US National Congress on Computational Mechanics, Albuquerque, New Mexico, July 23-27, 2023.

Black N. & Raeisi Najafi A.; “Multiscale Design Optimization with Local Failure Criteria Through Machine Learning” USNCCM17: US National Congress on Computational Mechanics, Albuquerque, New Mexico, July 23-27, 2023.

Black N. & Raeisi Najafi A.; “A Machine Learning Approach to Meta-structure” WCSMO-15: The 15th World Congress of Structural and Multidisciplinary Optimization, Cork, Ireland, June 5-9, 2023.

Sadighi A., Taghvaei M., Taheri M., Oeth D., Siegler S., Schaer T., Raeisi Najafi A.; “Numerical analysis of the mechanical response of novel swelling bone implants in polyurethane foams” 2023 Drexel Emerging Graduate Scholars (DEGS) Conference, Philadelphia, PA, April 20, 2023.

Speck, T., Raeisi Najafi A.; “Multi-Physics Simulations on Structural Battery Composites” 2023 Drexel Emerging Graduate Scholars (DEGS) Conference, Philadelphia, PA, April 20, 2023.

2022

Pejman R., Raeisi Najafi A.; “Multi-Level Design of a Battery Packaging for Electrical Vehicles Using Multifunctional Composites” 2022 International Mechanical Engineering Congress and Exposition (IMECE 2022), Columbus, OH, October 30 – November 02, 2022.

Black N., Raeisi Najafi A.; “Neural Network Surrogates for Multiscale Structural Optimization” 2022 International Mechanical Engineering Congress and Exposition (IMECE 2022), Columbus, OH, October 30 – November 02, 2022.

Pejman R., Raeisi Najafi A.; “Microstructural Design of Structural Battery Electrolyte” 19th U.S. National Congress on Theoretical and Applied Mechanics (USNCTAM19), Austin, TX, June 19-24, 2022.

Black N., Raeisi Najafi A.; “Multi-Fidelity Graph Neural Networks as Surrogate Models for Finite Element Analysis” 19th U.S. National Congress on Theoretical and Applied Mechanics (USNCTAM19), Austin, TX, June 19-24, 2022.

Gorman J., Raeisi Najafi A.; “Transient Topology Optimization for Thermal Design of Microvascular Composites” 19th U.S. National Congress on Theoretical and Applied Mechanics (USNCTAM19), Austin, TX, June 19-24, 2022.

Black N., Raeisi Najafi A.; “Deep Learning in Concurrent Multiscale Structural Optimization” 19th U.S. National Congress on Theoretical and Applied Mechanics (USNCTAM19), Austin, TX, June 19-24, 2022.

Perumal V., Tekerek E., Riensche A., Jacquemetton L., Cole K., Halliday H., Rao P., Raeisi Najafi A., Kontsos A.; “Data-Driven Design Optimization Approach for Metal Additive Manufacturing Using Physics-Based Surrogate Modeling” 19th U.S. National Congress on Theoretical and Applied Mechanics (USNCTAM19), Austin, TX, June 19-24, 2022.

Pejman R., Raeisi Najafi A.; “Multi-Objective Topology Optimization of Structural Battery Electrolyte” Engineering Mechanics Institute Conference 2022, Baltimore, MD, May 31-June 3, 2022.

Black N., Raeisi Najafi A.; “Incorporating Architected Materials in Multiscale Structural Optimization with Deep Learning” Engineering Mechanics Institute Conference 2022, Baltimore, MD, May 31-June 3, 2022.

Gorman J., Pejman R., Raeisi Najafi A.; “Nature Inspired Microvascular Active Cooling Network Design Using Steady State and Transient Topology Optimization” Engineering Mechanics Institute Conference 2022, Baltimore, MD, May 31-June 3, 2022.

2021

Pejman R., Raeisi Najafi A.; “Topology optimization of nature-inspired vascular materials” 16th U.S. National Congress on Computational Mechanics (USNCCM16), Virtual, July 25-29, 2021.

Pejman R., Raeisi Najafi A.; “A topology optimization approach for design of actively-cooled vascular composite” 14th World Congress of Structural and Multidisciplinary Optimization (WCSMO14), Virtual, June 13-18, 2021.

2020

Maghami E., Josephson T., Moore J., Raeisi Najafi A.; “Effects of Age-related Changes on Fracture Resistance of Human Cortical Bone” 44th Meeting of American Society of Biomechanics (vASB 2020), Atlanta, Georgia, August 4-7, 2020.

Maghami E., & Raeisi Najafi A.; “Fracture Resistance Analysis in Human Dentin Microstructure” 44th Meeting of American Society of Biomechanics (vASB 2020), Atlanta, Georgia, August 4-7, 2020.

Pejman R.,  Raeisi Najafi A.;  “Network Redundancy: A Key Design Factor for Cooling Networks”, Proceedings of the ASME 2020 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Virtual, August 17-August 19, 2020.

Pejman R., Sigmund O.,  Raeisi Najafi A.;  “An international collaboration on the design of new generation of thermal management microvascular composites”, Annual International Research Showcase, Drexel University, Philadelphia, Pennsylvania, May 27, 2020.

Pejman R.,  Raeisi Najafi A.;  “An Innovative Design Optimization Scheme for Multifunctional Microvascular Composites”, Gordon Research Conference (GRC): Multifunctional Materials and Structures 2020, Ventura, California, January 19-January 24, 2020.

2019

Pejman R., Tan M. H. Y., Aboubakr S. H., Martin W. H, Patrick J. F., Raeisi Najafi A.; “Hybrid Topology/Shape Optimization of Microvascular Composite using an Analytic Sensitivity Analysis over a Stationary Mesh”, 15th U.S. National Congress on Computational Mechanics, Austin, Texas, July 28-August 1, 2019.

Pejman R., Keshavarzzadeh V., Raeisi Najafi A.; “Reliability-based and Robust Design Optimization of Microvascular Materials for Active Cooling Applications”, 15th U.S. National Congress on Computational Mechanics, Austin, Texas, July 28-August 1, 2019.

Pejman R., Keshavarzzadeh V., Raeisi Najafi A.;  “Efficient scheme for IGFEM-based topology/shape optimization of microvascular materials considering uncertainty in geometry, load, and material properties”, World Congress of Structural and Multidisciplinary Optimization (WCSMO13), Beijing, China, May 20-May24, 2019. 

2018

Najafi A.R. and Safdari M., Tortorelli D., Geubelle P.H.; “Multi-scale Design of Periodic Cellular Materials Using a Gradient-Based Shape Optimization” ASME 2018 International Mechanical Engineering Congress & Exposition (IMECE), Pittsburgh, Pennsylvania, November 9-15, 2018.

Najafi A.R., Safdari M., Tortorelli D., Geubelle P.H.; “Design of Nonlinear Materials Using a Multiscale NURBS based Shape Optimization Scheme” 13th World Congress on Computational Mechanics (WCCM2018)/2nd Pan American Congress on Computational Mechanics, New York City, July 22-27, 2018.

Geubelle P.H., Tan M.H.Y., Pety S., Najafi A.R., White S.; “GradientBased Computational Design of Microvascular Composites Based on an Interface-Enriched Generalized Finite Element Method” 13th World Congress on Computational Mechanics (WCCM2018)/2nd Pan American Congress on Computational Mechanics, New York City, July 22-27, 2018.

Najafi A.R., Dastvan R., Mchaourab H. S.; “Study of Conformational Transition of a Protein Secretion ABC Transporter Using Molecular Dynamic” Gordon Research Conference in Mechanisms of Membrane Transport, Biophysical Journal, Vol. 114, no. 3, pp. 148a-149a, 2018.

Sadighi A., Asgari M.; “Energy Absorption Analysis of Empty and Foam-Filled Bi-tubular Composite Tube under Axial and Oblique Loading” The 6th international conference on composites: characterization, fabrication, and application, Tehran, Iran, 2018.

2017

Najafi A.R., Mahinthichaichan P., Tajkhorshid E.; “Structural Dynamics Underlying Alternate Access Mechanism in A Protein Secretion ABC Transporter” Gordon Research Conference in Mechanisms of Membrane Transport, New London, NH, June 25-30, 2017.

Najafi A.R. and Tajkhorshid E.; “Identification and Energetic Characterization of Gas Permeation Pathways through a Plant Water Channel” Biophysical Journal, Vol. 112, no. 3, pp. 423a, 2017.

2016

Najafi A.R., Safdari M., Tortorelli D., Geubelle P.H.; “Multi-scale Design of Nonlinear Materials using a NURBS-based Shape Optimization Method” ASME 2016 International Mechanical Engineering Congress & Exposition (IMECE), Phoenix, November 11-17, 2016.

Tan M.H.Y., Najafi A.R., Pety, S.J., White S. R., Geubelle P.H.; “Multi-objective design of actively-cooled microvascular materials”, ASME 2016 International Mechanical Engineering Congress & Exposition (IMECE), Phoenix, November 11-17, 2016.

Tan, M. H. Y., Pety, S. J., Najafi A.R., White S. R., Geubelle, P.H., “Computational analysis and design of actively-cooled microvascular composites”, Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS), Stowe, VA, 2016.

Zhang K., Najafi A.R., Jin J.M., Geubelle P.H.; “Gradient-based shape optimization for electromagnetic problems using IGFEM”, Antennas and Propagation (APSURSI), 2016 IEEE International Symposium on. IEEE, 2016.

Najafi A.R., Safdari, M., Tortorelli D., Geubelle, P.; “Material Design Using a NURBS-based Shape Optimization” 57th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, San Diego, California, USA, January 4-8, 2016.

2015

Najafi A.R., Safdari, M., & Geubelle, P.; “Microstructural Design of Heterogeneous Materials Using a NURBS-Based Shape Optimization Method” ASME 2015 International Mechanical Engineering Congress & Exposition (IMECE), Houston, Texas, November 13-19, 2015.

Tan M.H.Y., Najafi A.R., Pety, S.J., White S. R., Geubelle P.H.; “Efficient Gradient-based Optimization for the Design of Microvascular Composites for Battery Cooling” ASME 2015 International Mechanical Engineering Congress & Exposition (IMECE), Houston, Texas, November 13-19, 2015.

Tan M.H.Y., Pety, S.J., Najafi A.R., White S. R., Geubelle P.H.; “Computational Design and Performance Assessment of Microvascular Composite Panels for Battery ” 20th International Conference on Composite Materials, Copenhagen, Denmark, July 19-24, 2015.

2014

Najafi A.R., Tan, M., Safdari, M., & Geubelle, P.; “Shape Optimization of Microvascular Composites used in Active Cooling Applications” In A. Bajaj, P. Zavattieri, M. Koslowski, & T. Siegmund (Eds.). Proceedings of the Society of Engineering Science 51st Annual Technical Meeting, October 1-3, 2014, West Lafayette: Purdue University Libraries Scholarly Publishing Services, 2014. http://docs.lib.purdue.edu/ses2014/mss/mmms/24

Pety, S., Tan, M., Najafi A.R., Geubelle, P., Sottos, N., & White, S.; “Microvascular Composites for Integrated Battery Packaging and Cooling” In A. Bajaj, P. Zavattieri, M. Koslowski, & T. Siegmund (Eds.). Proceedings of the Society of Engineering Science 51st Annual Technical Meeting, October 1-3, 2014, West Lafayette: Purdue University Libraries Scholarly Publishing Services, 2014. http://docs.lib.purdue.edu/ses2014/mss/mmms/28

Tan M.H.Y., Safdari M., Najafi A.R., Geubelle P.H.; “A NURBS-based Interface-enriched Generalized Finite Element Scheme for the Computational Analysis and Design of High Temperature Microvascular Composites” In A. Bajaj, P. Zavattieri, M. Koslowski, & T. Siegmund (Eds.).Proceedings of the Society of Engineering Science 51st Annual Technical Meeting, October 1-3, 2014, West Lafayette: Purdue University Libraries Scholarly Publishing Services, 2014. http://docs.lib.purdue.edu/ses2014/mss/mmms/18

Zhang K., Najafi A.R., Jin J.M., Geubelle P.H.; “An Interface-enriched Generalized Finite Element Method for Efficient Electromagnetic Analysis of Composite Materials” In A. Bajaj, P. Zavattieri, M. Koslowski, & T. Siegmund (Eds.). Proceedings of the Society of Engineering Science 51st Annual Technical Meeting, October 1-3, 2014, West Lafayette: Purdue University Libraries Scholarly Publishing Services, 2014. http://docs.lib.purdue.edu/ses2014/mss/mmms/22

Safdari M., Najafi A.R., Sottos N.R., Geubelle P.H.; “Simulation of the Microlevel Damage Evolution in Polymer Matrix Composites” In A. Bajaj, P. Zavattieri, M. Koslowski, & T. Siegmund (Eds.). Proceedings of the Society of Engineering Science 51st Annual Technical Meeting, October 1-3, 2014, West Lafayette: Purdue University Libraries Scholarly Publishing Services, 2014. http://docs.lib.purdue.edu/ses2014/mss/issues/18

Najafi A.R., Safdari A., Tortorelli D., Geubelle P. H.; “Microstructural Design of a Microvascular Composite: a Gradient-based Shape Optimization Scheme Using an Interface-enriched GFEM” 17th U.S. National Congress on Theoretical & Applied Mechanics, Michigan State University, East Lansing, Michigan, June 15-20, 2014.

Safdari A., Najafi A.R., Sottos N. R., Geubelle P. H.; “An Isogeometric Interface-Enriched Generalized Finite Element Method for Problems with Complex Discontinuous Gradient Field” 17th U.S. National Congress on Theoretical & Applied Mechanics, Michigan State University, East Lansing, Michigan, June 15-20, 2014.

Tan M. H. Y., Safdari A., Najafi A.R., Geubelle P. H.; “A NURBS-based Interface-enriched Generalized Finite Element Scheme for the thermal analysis and Design of Microvascular Composites” 17th U.S. National Congress on Theoretical & Applied Mechanics, Michigan State University, East Lansing, Michigan, June 15-20, 2014.

Najafi A.R., Coppola A., Soghrati S., White S. R., Sottos N. R., Geubelle P. H.; “Microvascular Composite Skin Panels for Hypersonic Aircraft” 55th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, National Harbor, Maryland, USA, January 13-17, 2014.

2013

Najafi A.R., Soghrati S., Geubelle P. H.; “Computation Analysis and Design of Multi-Functional Microvascular Composites for High Temperature Application” Engineering Mechanics Institute Conferences (EMI), Northwestern University, Evanston, Illinois, USA, August 4-7, 2013.

Najafi A.R., Soghrati S., Sottos N. R. White S. R., Geubelle P. H.; “Computational Design of Actively-Cooled Microvascular Composite Skin Panels for Hypersonic Aircraft” 54th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, Boston, Massachusetts, USA, April 8-11, 2013.

 Rasoulian R., Najafi A.R., Jasiuk I.; “Microindentation Study of Developing Swine Cortical Bone ” ORS Annual Meeting, San Antonio, Texas, January 26-29, 2013.

Chittenden M., Najafi A.R., Jasiuk I.; “Nanoindentation and Ash Content Study of Developing  Swine Cortical Bone” ORS Annual Meeting, San Antonio, Texas, January 26-29, 2013.

2012

Soghrati S., Najafi A.R., Hughes K. M., Thakre P., Duarte C.,  Sottos N. R. White S. R., Geubelle P. H.; “Computational Design of Actively-Cooled Microvascular Composite for High Temperature Applications” 53th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, Honolulu, Hawaii, USA, April 23-26, 2012.

2010

Najafi A.R., Pashaee A., Majd S., Zoljanahi Oskui I., Bohluli B.; “Optimization of Screw Positioning in Mandible during Bilateral Sagittal Split Osteotomy Using Finite Element Method” The 26th Southern Biomedical Engineering Conference (SBEC 2010), University of Maryland, Maryland, MD, USA, May 1-2, 2010.

2009

Najafi A.R., Arshi A. R., PourAkbar Saffar K., Moeinzadeh M. H.; “A Tow-Dimensional Model for Carbon Nanotube Reinforced Bone Cement Fracture Analysis: A Study on the Effects of Carbon Nanotubes on Crack Propagation” 3rd International Conference on Mechanics of Biomaterials and Tissues (ICMOBT2009), Clearwater Beach, Florida, USA, Dec. 2009.

PourAkbar Saffar K., Rouhi G., Najafi A.R., Arshi A. R., Sudak L., N. JamilPour; “Fracture Toughness of Carbon Nanotube Reinforced Artificial Bone Tissue” 12th International Conference on Fracture (ICF12), Ottawa, Ontario, Canada, July 2009.

2008

PourAkbar Saffar K., JamilPour N., Najafi A.R., Rouhi G., Arshi A. R.; “A Finite Element Model for estimating Young’s Modulus of Carbon Nanotube Reinforced Composites Incorporating Elastic Cross-Links” 5th International Conference on Modeling and Simulation (ICMS2008), Paris, France, July 2008.

PourAkbar Saffar K., JamilPour N., Rouhi G., Najafi A.R., Arshi A.R.; “Prediction of Axial Young’s Modulus of a Representative Volume Element of a Tip-Functionalized Carbon Nanotube Embedded in Bone Cement” 1st International Conference on Composites: Characterization, Fabrication and Application (CCFA–1), Kish, Iran, Dec. 2008.

PourAkbar Saffar K., Najafi A.R., Rouhi G., Rafii-Tabar H., Arshi A.R.; “A Review on the Applications of Carbon Nanotubes in Bone Tissue Engineering” 1st Conference on Nanotechnology Applications in Sciences, Engineering, and Medicine (NTC2008), Mashhad, Iran, Feb. 2008.

2007

Najafi A.R., Arshi A. R., Eslami M. R., Katoozian H. R., Mallakin E., Moeinzadeh M. H.; “The Effect of Bone Microstructure on Microcracks Propagation Trajectory” American Society of Biomechanics Annual Conference (ASB 2007), Stanford University, Stanford, CA, USA, 2007.

Najafi A.R., Arshi A. R., Eslami M. R., Katoozian H. R., Mallakin E., Moeinzadeh M. H.; “Propagation of Microcracks in Osteonal Cortical Bone” 15th. Annual (International) Conference on Mechanical Engineering (ISME 2007), Amirkabir University of Technology, Tehran, Iran, May 15-17, 2007.

2005

Najafi A.R., Arshi A. R., Eslami M. R., Fariborz S.; Moeinzadeh M. H.; “Micromechanics Fracture of Haversian Cortical Bone:A Finite Element Method Analysis” Proceeding of 12th Iranian Conference on Biomedical Engineering (ICBME2005), Sahand University of Technology, Tabriz, Iran, pp. 97, 2005.

Najafi A.R., Arshi A. R., Eslami M. R., Fariborz S.; Moeinzadeh M. H.; “Micromechanics Fracture of Haversian Cortical Bone: A System of Singular Integral Equations” Proceeding of 12th Iranian Conference on Biomedical Engineering (ICBME2005), Sahand University of Technology, Tabriz, Iran, pp. 102, 2005.

2000

Najafi A.R., Eslami S., Shams I., Eslami M. R.; “Relative Rigidity of External Fixator During callus Development ” 5th Biennial Conference on Engineering Systems Design and Analysis(ASME 2000), Proceeding of ASME-ESDA, Switzerland, 2000.

Majd A. G., Najafi A.R., Eslami M. R., Shams I.; “Numerical Stress Analysis of External Fixators used on Tibia-Rigidity versus Design Parameters” Proceeding of 12th Conference of European Society of Biomechanics, August, pp. 27-30, Dublin, Ireland, 2000.

1998

Najafi A.R., Eslami S.; “Stress Analysis of a Lateral External Fixator” Proceeding of 1st Student Conference of Medical Engineering, Amirkabir University of Technology, Tehran, Iran, 1998.