Please visit our Google Scholar or ReseachGate pages. Our recent publications are listed below.

Basic and Applied Research Peer-reviewed Publications

  1. Kazi Zahir Uddin, Nicholas Pagliocca, Ibnaj Anamika Anni, George Youssef, and Behrad Koohbor “Multiscale Strain Field Characterization in Flexible Planar Auxetic Metamaterials with Rotating Squares” Advanced Engineering Materials, 2022 (Accepted).
  2. Huynh, Nha Uyen, Behrad Koohbor, and George Youssef “Localized Creep Analysis of Polyurea Elastomer from Full-field Measurements” Mechanics of Time-Dependent Materials, 2022 (Accepted).
  3. Uddin, Kazi Zahir; Anni, Ibnaj Anamika; Youssef, George; Koohbor, Behrad. “Tuning the Mechanical Behavior of Density Graded Elastomeric Foam Structures via Interlayer Properties” ACS Omega, 2022 (Accepted).
  4. George Youssef, Yazeed Kokash, Kazi Zahir Uddin, and Behrad Koohbor. “Density-Dependent Impact resilience and Auxeticity of Elastomeric Polyurea Foams” Advanced Engineering Materials, 2022 (Accepted).
  5. Steven Malley, Crystal Reina, Somer Nacy, Jérȏme Gilles, Behrad Koohbor, and George Youssef “Predictability of Mechanical Behavior of Additively Manufactured Particulate Composites using Machine Learning and Data-driven Approaches” Computers in Industry, 2022 (Accepted).
  6. Nicholas Pagliocca, George Youssef, Behrad Koohbor “In-Plane Mechanical and Failure Responses of Honeycombs with Syntactic Foam Cell Walls” Composite Structures, 2022 (Accepted).
  7. Anni, Ibnaj Anamika, Kazi Zahir Uddin, Nicholas Pagliocca, Nand Singh, Oyindamola Rahman, George Youssef, and Behrad Koohbor. “Out-of-Plane Load-Bearing and Mechanical Energy Absorption Properties of Flexible Density-Graded TPU Honeycombs.” Composites Part C: Open Access (2022): 100284.
  8. Behrad Koohbor, George Youssef, Kazi Zahir Uddin, Yazeed Kokash “Dynamic Behavior and Impact Tolerance of Elastomeric Foams Subjected to Multiple Impact Conditions” Journal of Dynamic Behavior of Materials, 2022 (Accepted).
  9. Nicholas Pagliocca, Kazi Zahir Uddin, Ibnaj Anamika Anni, Chen Shen, George Youssef, and Behrad Koohbor “Flexible Planar Metamaterials with Tunable Poisson’s Ratios” Materials and Design, 2022 (Accepted).
  10. Wisam T. Abbood, Somer M. Nacy, and George Youssef, and Oday I. Abdullah “Dynamic Performance of a Series Elastic Actuator with Variable Stiffness Logarithmic Spiral Spring” International Journal of Robust and Nonlinear Control, 2022 (Accepted).
  11. Nha Uyen Huynh and George Youssef “Ex situ Spectroscopic Characterization of Residual Effects of Thermomechanical Loading on Polyurea” Journal of Engineering Materials and Technology 144.3 (2022).
  12. Nha Uyen Huynh, Carlos Gamez, and George Youssef. “Spectro-microscopic Characterization of Elastomers Subjected to Laser-induced Shock Waves” Macromolecular Materials and Engineering, 2021 (Accepted).
  13. Scott Newacheck and George Youssef. “On the Magnetoelectric Performance of Multiferroic Particulate Composite Materials” Smart Materials and Structures, 2021 (Accepted).
  14. Scott Newacheck and George Youssef. “Microscale Magnetoelectricity: Effect of Particles Geometry, Distribution, and Volume Fraction” Journal of Intelligent Material Systems and Structures, 2021 (Accepted).
  15. Scott Newacheck, Nha Uyen Huynh, and Youssef, George. “Colossal crystals in P3HT:PCBM blends for enhanced organic magnetism” Crystal Growth & Design, 2021 (Accepted).
  16. Oyindamola Rahman, Kazi Zahir Uddin, Jeeva Muthulingam, George Youssef, Chen Shen, and Behrad Koohbor. “Density-Graded Cellular Solids: Mechanics, Fabrication, and Applications” Advanced Engineering Materials, 2021 (Accepted).
  17. Steven Malley, Scott Newacheck, and George Youssef “Additively Manufactured Multifunctional Materials with Magnetoelectric Properties” Additive Manufacturing, 2021 (Accepted).
  18. Behrad Koohbor, Nicholas Pagliocca, and George Youssef “A Multiscale Experimental Approach to Characterize Micro-to-Macro Transition Length Scale in Polymer Foams” Mechanics of Materials, 2021 (Accepted).
  19. Hamidreza Moradi, Roozbeh Beh Aein, and George Youssef “Multi-objective Design Optimization of Dental Implant Geometrical Parameters” International Journal for Numerical Methods in Biomedical Engineering, 2021 (Accepted).
  20. Carlos Gamez, Nha Uyen Huynh, and George Youssef. “In-silico experimentations of multimode shock response of polyurea,” International Journal of Mechanical Sciences, 2021 (Accepted).
  21. Somer Nacy and George Youssef “Demagnetization Effect on the Magnetoelectric Response of Composite Multiferroic Cylinders” Journal of Composites Science, Special Issue: Multiferroic Composite Structures, 2021 (Accepted).
  22. Edric John Nacpil, Somer Nacy, and George Youssef “Feasibility Assessment of Transfer Functions Describing Biomechanics of the Human Lower Limb During the Gait Cycle” Journal of Biomedical Signal Processing & Control, 2021 (Accepted).
  23. George Youssef, Somer Nacy, and Scott Newacheck “Tuning the Performance of Magnetoelectric Layered Cylindrical Composites” Mechanics Based Design of Structures and Machines, An International Journal, 2021 (Accepted).
  24. Ryan Stampfli, Nha Uyen Huynh, George Youssef “Long-term Converse Magnetoelectric Response of Actuated 1-3 Multiferroic Composite Structures” Magnetochemistry, Multiferroic Materials 2021 (Accepted).
  25. George Youssef, Scott Newacheck, Nha Uyen Huynh,and Carlos Gamez. “Multiscale characterization of E-Glass/Epoxy composite exposed to extreme environmental conditions” Journal of Composites Science, Special Issue: Characterization and Modelling of Composites, Volume II, 2021 (Accepted).
  26. Aryan Blourchian, Atif Mohammed Shaik, Nha Uyen Huynh, and George Youssef. “Segmental Evolution of Ultraviolet Weathered Polyurea” Journal of Polymer Research, 2021 (Accepted).
  27. Sophia Do, Jash Canilao, Sophia Stepp, and George Youssef. “Thermomechanical Investigations of Polyurea Microspheres” Polymer Bulletin, 2020 (Accepted).
  28. George Youssef, Somer Nacy, and Nha Uyen Huynh. “Mechanics of Microspheres Reinforced Hollow Microcells.” Journal of Applied Mechanics, 2020 (Accepted).
  29. Dillan Stengel, J. Bennett Addison, David Onofrei, Nha Uyen Huynh, George Youssef, and Gregory P. Holland. “Hydration-induced β-sheet Crosslinking of a-helical-rich Spider Prey-wrapping Silk.” Advanced Functional Materials, 2020 (Accepted).
  30. Jose Gonazlez, Somer Nacy, and George Youssef. “Finite element analysis of human skull bone adaptation to mechanical loading” Computer Methods in Biomechanics and Biomedical Engineering, 2020 (Accepted).
  31. George Youssef and Somer Nacy. “Stress-Based Investigations of the Performance of Magnetoelectric Composite Cylinders” Mechanics Based Design of Structures and Machines, An International Journal, 2020 (Accepted).
  32. Nha Uyen Huynh and George Youssef. “Physical Evidence of Stress-induced Conformational Changes in Polymers” Experimental Mechanics., 2020 (Accepted).
  33. David Hille, George Youssef, Atif Mohammad, and Khaled Morsi. “Novel Ballistic Processing of Thick Films: Structural Evolution and Mechanical Behavior” Metallurgical and Materials Transactions, 2020 (Accepted).
  34. Ryan Stampfli, Scott Newacheck, and George Youssef. “Fully-coupled Computational Modeling of the Dynamic Response of 1-3 Multiferroic Composite Structures.” International Journal of Mechanical Sciences, 2020 (Accepted).
  35. Sophia Do, Nha Uyen Huynh, Nathan Reed, Atif Mohammed Shaik, Somer Nacy, and George Youssef. “Partially-Perforated Self-Reinforced Polyurea Foams” Applied Sciences, Advances in Foamed Polymers Special Issue, 2020 (Accepted).
  36. Behrad Koohbor, Aryan Blourchian, Kazi Zahir Uddin, and George Youssef. “Characterization of Energy Absorption and Strain Rate Sensitivity of a Novel Elastomeric Polyurea Foam” Advanced Engineering Materials, 2020 (Accepted).
  37. Sophia Do, Sophia Stepp, and George Youssef. “Quasi-static and Dynamic Characterization of Polyurea Microspheres Reinforced Polyurea Matrix Composite” Materials Today Communications, 2020 (Accepted).
  38. Kazi Zahir Uddin, George Youssef, Mitja Trkov, Hamid Seyyedhosseinzadeh, and Behrad Koohbor “Gradient Optimization of Multi-Layered Density-Graded Foam Laminates for Footwear Material Design” Journal of Biomechanics, 2020 (Accepted).
  39. George Youssef, Somer Nacy, and Scott Newacheck. “Leveraging strain localization to improve the performance of magnetoelectric composite cylinders”, Europhysics Letters, 2020 (Accepted).
  40. Newacheck, S. and Youssef, G. “Magnetoelectricity Beyond Saturation” Materials Horizons, 2020 (Accepted).
  41. George Youssef,  Jordan Smilo,  Aryan Blourchian, Nha Uyen Huynh, and Arbi V. Karapetian. “Multifunctional Fused Deposition Modeled Acrylonitrile Butadiene Styrene-based Structures with Embedded Conductive Channels.” Journal of Engineering Materials and Technology, 2020 (Accepted).
  42. Youssef, G., Newacheck, S., Lopez, M., and Stampfli, R. “Triaxial Magnetic Flux Emanation in Response to Uniaxial Electric Field in Magnetoelectric Composite Cylinder Structure” Physica Status Solidi A: Applications and Materials Science, 2020 (Accepted).
  43. Newacheck, S. and Youssef, G. “Noncontact Spatiotemporal Strain Mapping of Composite Multiferroic Cylinders” International Journal of Mechanics and Materials in Design, 2020 (Accepted).
  44. Nha Uyen Huynh, Jordan Smilo, Aryan Blourchian, Arbi V. Karapetian, and George Youssef. “Property-Map of Epoxy-Treated and As-Printed Polymeric Additively Manufactured Materials” International Journal of Mechanical Sciences, 2020 (Accepted).
  45. Youssef, G., Nathan Reed, Nha Uyen Huynh, Brooke Rosenow, and Kristoffer Manlulu “Experimentally-validated Predictions of Impact Response of Polyurea Foams using Viscoelasticity based on Bulk Properties” Mechanics of Materials, 2020 (Accepted).
  46. Youssef, G. “Creep Analysis of E-Glass/Vinyl-ester Laminated Composites for Underground Vault Structures.” Polymer Composites Journal, 2020 (Accepted).
  47. Ryan Stampfli and George Youssef. “Multiphysics Computational Analysis of Multiferroic Composite Ring Structures.” International Journal of Mechanical Sciences (2020): 105573.
  48. Youssef, George, Somar Nacy, and Scott Newacheck. “Dynamic magnetoelectric response of composite multiferroics cylinders.” Smart Materials and Structures (2020).
  49. Nathan Reed, Nha Uyen Huynh, Brooke Rosenow, Kristoffer Manlulu, and George Youssef. “Synthesis and Characterization of Elastomeric Polyurea Foam” Journal of Applied Polymer Science 2019, 137, 48839.
  50. Shaik, Atif Mohammed, Nha Uyen Huynh, and George Youssef. “Micromechanical Behavior of Ultraviolet-Exposed Polyurea.” Mechanics of Materials (2019): 103244.
  51. George Youssef, Scott Newacheck, and Louay S. Yousuf. “Insights into the Displacement Field in Magnetoelectric Composites” Journal of Intelligent Material Systems and Structures (2019).
  52. Scott Newacheck and George Youssef. “Wireless energy transfer based on strain-mediated composite multiferroics,” Journal of Smart Materials and Structures 29 (2020) 015014.
  53. Huynh, N.U., Kassegne, S. & Youssef, G. Comparative study of tuning of microfabrication parameters for improving electrochemical performance of platinum and glassy carbon microelectrodes in neural prosthetics. Microsyst Technol 26, 775–785 (2020).
  54. Scott Newacheck, Wayne Weers, Danielle Kolber, Kieran Rutherford, and George Youssef. “Advancing ship models mobility and agility using steerable rim-driven thrusters,” Journal of Ocean Technology, Volume 14, No 4, 2019 101-114.
  55. George Youssef, Geovana C.V. Pessoa, and Somer Nacy. “Effect of elevated operating temperature on the dynamic mechanical performance of E-glass/epoxy composite” Composites Part B: Engineering 173: 106937 (2019).
  56. Scott Newacheck and George Youssef  “Synthesis and characterization of polarized novel 0–3 Terfenol-D/PVDF-TrFE composites” Composites Part B: Engineering 172: 97-102 (2019).
  57. S. Do, B. Rosenow, N. Reed, A. Mohammed, K. Manlulu, and George Youssef. “Fabrication, characterization, and testing of novel polyurea foam.” PU Magazine – Vol. 16, No. 2 – April/May 2019.
  58. Scott Newacheck, Taylor Webster, and George Youssef. “The Effect of Multidirectional Bias Magnetic Fields on the Converse Magnetoelectric Response of Multiferroics Concentric Composite Ring.” Applied Physics Letters 113(17):172902 (2018).
  59. Martin, Nicholas and George Youssef. “Dynamic Properties of Hydrogels and Fiber-reinforced Hydrogels.” Journal of the mechanical behavior of biomedical materials (2018).
  60. Youssef, George, Scott Newacheck, and Mario Lopez. “Mapping Magnetoelastic Response of Terfenol-D Ring Structure.” Applied Physics Letters, Vol.110, Issue 19 (2017).
  61. Youssef, George, Cesar Lopez, and J. Michael Kabo. “Composite mechanics of the multilayer structure of the annulus fibrosus.” Journal of Mechanical Engineering and Biomechanics, 1:5, 126-134 (2017).
  62. Youssef, George, Joseph Brinson, and Ian Whitten. “The Effect of Ultraviolet Radiation on the Hyperelastic Behavior of Polyurea.” Journal of Polymers and the Environment, 1-8 (2017).
  63. Youssef, George, Mario Lopez, and Scott Newacheck. “On the effect of polarization direction on the converse magnetoelectric response of multiferroic composite rings.” Smart Materials and Structures. 1-8 (2017).
  64. Mario Lopez and George Youssef. “Converse Magneto-electric Coefficient of Composite Multiferroic Rings.” Mechanics of Composite and Multi-functional Materials, (2017) Volume 7, 185-191.
  65. Youssef, George, and Ian Whitten. “Dynamic Mechanical Properties of Polyurea.” Mechanics of Time-Dependent Materials. 1-13 (2016).
  66. Whitten, Ian, and George Youssef. “The effect of ultraviolet radiation on ultrasonic properties of polyurea.” Polymer Degradation and Stability 123 (2016): 88-93.
  67. Chavez, Andres C., Mario Lopez, and George Youssef. “Converse magnetoelectric coefficient of concentric multiferroic composite ring.” Journal of Applied Physics 119, no. 23 (2016): 233905.
  68. Moon, Won, Kimberley W. Wu, Matthew MacGinnis, Jay Sung, Howard Chu, George Youssef, and Andre Machado. “The efficacy of maxillary protraction protocols with the micro-implant-assisted rapid palatal expander (MARPE) and the novel N2 mini-implant—a finite element study.” Progress in orthodontics 16, no. 1 (2015): 1.
  69. Gupta, Vijay, and George Youssef. “Orientation-Dependent Impact Behavior of Polymer/EVA Bilayer Specimens at Long Wavelengths.” Experimental Mechanics 54, no. 6 (2014): 1133-1137.
  70. MacGinnis, Matt, Howard Chu, George Youssef, Kimberley W. Wu, Andre Wilson Machado, and Won Moon. “The effects of micro-implant assisted rapid palatal expansion (MARPE) on the nasomaxillary complex—a finite element method (FEM) analysis.” Progress in orthodontics 15, no. 1 (2014): 1.
  71. Jain, Amit, George Youssef, and Vijay Gupta. “Dynamic tensile strength of polyurea-bonded steel/E-glass composite joints.” Journal of Adhesion Science and Technology 27, no. 4 (2013): 403-412.
  72. Youssef, George, R. Crum, S. V. Prikhodko, D. Seif, G. Po, N. Ghoniem, S. Kodambaka, and V. Gupta. “The influence of laser-induced nanosecond rise-time stress waves on the microstructure and surface chemical activity of single crystal Cu nanopillars.” Journal of applied physics 113, no. 8 (2013): 084309.
  73. Youssef, George, and V. Gupta. “Resonance in polyurea-based multilayer structures subjected to laser-generated stress waves.” Experimental Mechanics 53, no. 2 (2013): 145-154.
  74. Youssef, George, and Vijay Gupta. “Dynamic tensile strength of polyurea.” Journal of Materials Research 27, no. 02 (2012): 494-499.
  75. Youssef, George, and Vijay Gupta. “Dynamic response of polyurea subjected to nanosecond rise-time stress waves.” Mechanics of Time-Dependent Materials 16, no. 3 (2012): 317-328.
  76. Youssef, George, Caroline Moulet, Mark S. Goorsky, and Vijay Gupta. “Inter-wafer bonding strength characterization by laser-induced shock waves.” Journal of Applied Physics 111, no. 9 (2012): 094902.
  77. Kim, Hyoungil, Jason Citron, George Youssef, Artemio Navarro, and Vijay Gupta. “Dynamic fracture energy of polyurea-bonded steel/E-glass composite joints.” Mechanics of Materials 45 (2012): 10-19.

Engineering Education Peer-reviewed Publications:

  1. Youssef, G., Ainsworth, E., Shapiro, C., Whang Sayson, H., and Levis-Fitzgerald, M. “Comprehensive Research Experience for Undergraduates.” Proceedings of 2016 American Society of Engineering Education (ASEE) Annual Conference.
  2. Youssef, G. and Arutyunov, V. “An Approach to Integrating Systems Engineering into Senior Design.” Proceedings of 2016 American Society of Engineering Education (ASEE) Annual Conference.
  3. Chavez, M. Ferrer, S. Jaco, A. Roldan, J. Sim, and G. Youssef. “K-12 Tunable Education Modules.” Proceedings of 2014 American Society of Engineering Education (ASEE) Annual Conference.
  4. Ganhdi, S. J., Nandikolla, V., Youssef, G., and Bishay, P. “Using Career Pathways to Assimilate High School Students into the Engineering Profession.” Proceedings of 2016 American Society of Engineering Education (ASEE) Annual Conference.
  5. G. Youssef and M. Kabo “Machine Design: Redesigned.” Proceedings of 2015 American Society of Engineering Education (ASEE) Annual Conference.
  6. G. Youssef and R. Ryan, “Relationship between Exam Format and Learning Effectiveness,” Proceedings of the 2012 ASEE PSW Section Conference, 2012:7.

Academic Textbooks:

  1. George Youssef “Applied Mechanics of Polymers: Properties, Processing, and Behavior.” Elsevier. Paperback ISBN: 9780128210789 – eBook ISBN: 9780128210796

Conference Presentations:

  1. “Spectroscopic Characterization of Thermal Transitions in Polymers.” Nha Uyen Huynh and George Youssef. 2022 SEM Annual Conference.
  2. “Elucidation of the Creep Response of Polymers using Light-matter Interactions.” Nha Uyen Huynh and George Youssef. 2022 SEM Annual Conference.
  3. “Spectroscopic Characterizations of Polymers Under Ultrahigh Strain Rate Loading.” Nha Uyen Huynh and George Youssef. 2022 MRS Spring Meeting.
  4. “Spectro-mechanical Characterization of Shock-loaded Polyurea.” Nha Uyen Huynh and George Youssef. ACS Spring 2022 Meeting & Exposition.
  5. “Computational Modeling of Hydrogen Bonding in Polyurea.” Sasha Gardner, Nha Uyen Huynh, George Youssef, and Andrew Cooksy. ACS Spring 2022 Meeting & Exposition.
  6. “Molecular Interrogation of Polymers using Terahertz Spectroscopy.” Nha Uyen Huynh and George Youssef. SEM 2021 Virtual Annual Conference.
  7. “Electromechanically-enhanced Organic Composite Multiferroics” Scott Newacheck and George Youssef. SEM 2021 Virtual Annual Conference.
  8. “Magnetoelectric Properties of 3D Printed Multifunctional Materials.” Scott Newacheck, Steven Malley, and George Youssef.  SEM Annual 2021 Virtual Meeting.
  9. “Spectroscopic Explorations of Thermal Transitions of Polyurea.” Nha Uyen Huynh and George Youssef. MRS 2021 Virtual Spring Meeting & Exhibit.
  10. “Fabrication and Characterization of Ferromagnetic Organic Semi-Crystalline Polymers.” Scott Newacheck and George Youssef. MRS 2021 Virtual Spring Meeting & Exhibit.
  11. “Soft Organic Multiferroic Polymer Composites.” Scott Newacheck and George Youssef. MRS 2021 Virtual Spring Meeting & Exhibit.
  12. “Additively Manufactured Magnetoelectric Multifunctional Materials.” Steven Malley and George Youssef. MRS 2021 Virtual Spring Meeting & Exhibit.
  13. “Spectroscopic Explorations of Thermal Transitions of Polyurea.” Nha Uyen Huynh and George Youssef. MRS 2021 Virtual Spring Meeting & Exhibit.
  14. “Magneto-Mechano-Electric Characterization of Polarized 0-3 Terfenol-D/PVDF-TrFE Composites.” Scott Newacheck and George Youssef. MRS 2019 Fall Meeting and Exhibit.
  15. “Fatigue Crack Growth Behavior of Multiferroic Concentric Composite Rings.” Ryan M. Stampfli and George Youssef. MRS 2019 Fall Meeting and Exhibit (Poster).
  16. “In Situ Characterization of Active Polymers Using Terahertz Time-Domain Spectroscopy.” Nha Uyen Huynh and George Youssef. MRS 2019 Fall Meeting and Exhibit (Poster).
  17. “Magneto-Electro-Mechanical Properties of Giant Magnetostrictive Particulates Polarized Electroactive Polymer Matrix” S. Newacheck and G. Youssef. ASME 2019 International Mechanical Engineering Congress and Exposition.
  18. “Strain-Mediated Magnetoelectric Composites for Wireless Energy Transfer” S. Newacheck and G. Youssef. ASME 2019 International Mechanical Engineering Congress and Exposition.
  19. “Enhancing the Magnetoelectric Performance of Layered Cylindrical Composites Through Non-Traditional Boundary Conditions” S. Newacheck, S. Nacy and G. Youssef. ASME 2019 International Mechanical Engineering Congress and Exposition.
  20. “Spectroscopic-Mechanical Behavior of Polymers” N. Huynh and G. Youssef. ASME 2019 International Mechanical Engineering Congress and Exposition.
  21. “Multifunctional Additively Manufactured Structures” N. Huynh, J. Smilo, A. Blourchian, and G. Youssef. ASME 2019 International Mechanical Engineering Congress and Exposition.
  22. “Interfacial Fatigue Crack Propagation Behavior of Multiferroic Concertic Composite Rings” R. Stampfli and G. Youssef. ASME 2019 International Mechanical Engineering Congress and Exposition.
  23. “Fabrication, Characterization, and Testing of Novel Polyurea Foams.” S. Do, B. Rosenow, N. Reed, A. Mohammed, K. Manlulu, and G.Youssef. 2018 Polyurethanes Technical Conference.
  24. “Interrelation between quasi-static and dynamic performance of polymeric foam” N. Reed, B. Rosenow, and G. Youssef. ASME 2017 International Mechanical Engineering Congress and Exposition.
  25. “Dynamic Mechanical Behavior of Hydrogels and Fiber-reinforced Hydrogels” N. Martin and G. Youssef. ASME 2017 International Mechanical Engineering Congress and Exposition.
  26. “Effect of Ultraviolet on the Microstructure of Polyurea” M. Shaik and G. Youssef. ASME 2017 International Mechanical Engineering Congress and Exposition.
  27. “Synthesis and Characterization of Polyurea Microspheres” S. Do, S. Stepp, and G. Youssef. ASME 2017 International Mechanical Engineering Congress and Exposition.
  28. “Ultra-High Strain Rate Deformation of Nano-Structured Face-Centered Cubic Metals.” D. Seif, G. Youssef, Po, V. Gupta, S. Kodambaka, and N. Ghoniem. ASME 2011 International Mechanical Engineering Congress and Exposition.
  29. “Spallation and Phase Transformation Mechanisms in Laser-Shocked Nano-Crystals: Computer Simulations and Experimental Observations.” D. Seif, G. Po, R. Crum, G.  Youssef, S. Prikhodko, S. Kodambaka, V. Gupta and N. Ghoniem. Plasticity 2013 Conference.
  30. “K-12 Tunable Education Modules: An Innovative Pedagogy.” A. Chavez, M. Ferrer, S. Jaco, A. Roldan, J. Sim and G. Youssef. Society of Hispanic Engineers 2013 Conference.
  31. “Acoustic Properties of Ultra-Violet Exposed Polyurea.” I. Whitten and G. Youssef. ASME 2013 International Mechanical Engineering Congress and Exposition.
  32. “The effect of UV on the Properties of Polyurea.” G. Youssef, J. Brinson, and I. Whitten. The 9th International Conference on Mechanics of Time-Dependent Materials, 2014.
  33. “Machine Design: Redesigned.” G. Youssef and M. Kabo. ASEE Annual Conference, 2014.
  34. “Composite Mechanics of Intervertebral Disc.” C. Lopez and G. Youssef. ASME 2015 International Mechanical Engineering Congress and Exposition.
  35. “Uncovering the Fundamentals Behavior of Annulus Fibrosus Using Composite Mechanics” G. Youssef and C. Lopez. Annual Conference and Exposition on Biomaterials.
  36. “Converse Magneto-electric Coefficient of Composite Multiferroic Rings” M. Lopez and G. Youssef. 2016 SEM XIII International Congress.
  37. “Dynamic Properties of Ultraviolet Exposed Polyurea.” G. Youssef. The 10th International Conference on Mechanics of Time-Dependent Materials, 2016.
  38. “Magneto-electric Response of Composite Multiferroic Annulus.” M. Lopez and G. Youssef. ASME 2015 International Mechanical Engineering Congress and Exposition.
  39. “K-12 Tunable Education Modules.” G. Youssef, A. Chavez, M. Ferrer, S. Jaco, A. Roldan, and J. Sim. 2014 ASEE Annual Conference, 2014.
  40. “Transfer Function Relating Tibial Acceleration to Leg Muscle SEMG During Walking.” E. Nacpil and G. Youssef. ASME 2013 International Mechanical Engineering Congress and Exposition.
  41. “Ultra-violet radiation effect on the Mechanical Properties of Polyurea.” J. Brinson and G. Youssef. ASME 2013 International Mechanical Engineering Congress and Exposition.
  42. “K-12 Tunable Education Modules: An Innovative Pedagogy.” A. Chavez, M. Ferrer, S. Jaco, A. Roldan, J. Sim, J. Werner, C. Lopez, and G. Youssef. Art of Innovation 2013 Conference.
  43. “Relationship between exam format and learning effectiveness.” G. Youssef and R. Ryan. American Society of Engineering Education, Pacific West Section, St. Louis Obispo, CA, USA, 2012.
  44. “Interfacial strength characterization of bonded-wafers using laser-induced stress waves.” G. Youssef, C. Moulet, M. Goorshy, and V. Gupta. Wafer Bonding Conference, Chemnitz Germany, 2011.

Invited Talks:

  1. “Magneto-Electro-Mechanical Characterization Of Novel Terfenol-D/P(Vdf-Trfe) Composites” University of Nevada, Las Vegas, NV. March 5th, 2020.
  2. “Recent Research Progress in Additive Manufacturing” NASA, Jet Propulsion Laboratory, Additive Manufacturing Forum – Pasadena, CA, July 12th, 2019.
  3. “Effect of Creep Loading on the Performance of E-Glass/Vinyl-ester Laminated Composites” Armorcast Products Company – North Hollywood, CA, January 17th, 2019
  4. “Experimental Investigations into the Effect of Ultraviolet on Polyurea” PPG Aerospace – Sylmar, CA, January 29th, 2018
  5. “Strain-mediated Electromagnetic Coupling in Composite Multiferroic Structures” Computational Sciences Research Center, San Diego State University San Diego, CA, September 8th, 2017
  6. “Strain-mediated Magnetoelectric Coupling in Composite Multiferroic Structures” College of Engineering and Computer Science, California State University Northridge, Northridge, CA, April 28th, 2017
  7. “Strain-mediated Electromagnetic Coupling in Composite Multiferroic Structures” Faculty of Engineering, Alexandria University, Egypt, January 9th, 2017

Patents and Patent Applications

  1. George Youssef, Gregory Sawvelle, and Nha Uyen Huynh. “Agile Terahertz Nondestructive Evaluation Apparatus for Integration in Polymers and Composite Additive Manufacturing Systems” U.S Patent Application No. 63/355,069
  2. George Youssef and Nha Uyen Huynh. “Integrated Temperature-Controlled, Ultrahigh Strain Rate Loading, and Spectroscopy Apparatus for Dynamic Characterization of Materials” U.S Patent Application No. 62/929,586.
  3. George Youssef and Luciano Demasi. “Versatile Mechanoelectric Energy Harvesting Structures” U.S Patent Application No. 62/929,593.
  4. George Youssef and Scott Newacheck. “Low-power High-Frequency Directional Tunable AC Magnetic Field Generator” U.S Patent Application No. 62/848,139.
  5. George Youssef and Nathan Reed. “Scalable Manufacturing Method of Property-Tailorable Polyurea Foam.” U.S. Patent Application No. 16/118,879.
  6. Gupta, Vijay, Jason K. Citron, and George H. Youssef. “Material for mitigating impact forces with collision durations in nanoseconds to milliseconds range.” U.S. Patent Application No. 13/879,616.

Book Chapters

  1. Lopez, Mario, and George Youssef. “Converse magneto-electric coefficient of composite multiferroic rings.” Mechanics of Composite and Multi-functional Materials, Volume 7. Springer International Publishing, 2017. 185-191.
  2. Gupta, Vijay, Ryan Crum, Carlos Game, Brian Ramirez, Ninh Le, George Youssef, Jason Citron, Andrew Kim, Amit Jain, and Utkarsh Misra. “Adhesive and Ultrahigh Strain Rate Properties of Polyurea Under Tension, Tension/Shear, and Pressure/Shear Loadings with Applications to Multilayer Armors.” Elastomeric Polymers with High Rate Sensitivity – Applications in Blast, Shockwave, and Penetration Mechanics, 1st Edition, Barsoum, Roshdy George 2015. 71-92.