Dr. Navindra Wijeyeratne is an assistant professor of mechanical engineering at 91Â鶹ӳ»
Polytechnic University. Prior to joining 91Â鶹ӳ» Poly, Wijeyeratne was a graduate
research and teaching assistant at the University of Central 91Â鶹ӳ» where he taught
a variety of mechanical engineering courses.
Wijeyeratne's expertise lies in the field of mechanics of materials, solid mechanics,
fatigue analysis, constitutive modeling, and computational modeling using finite element
analysis (FEA).
His research aims to enhance the effectiveness of next-generation engineering materials
and manufacturing processes by utilizing multiscale material modeling approaches to
investigate material deformation and failure. With a particular emphasis on additively
manufactured superalloys, Wijeyeratne's research utilizes physics-based constitutive
models to develop data-driven models through the application of artificial neural
networks (ANN) methods, with the goal of improving computational efficiency.
He has extensive experience in experimental and computational constitutive modeling
of Nickel-base superalloys, including the use of crystal viscoplasticity (CVP) theory
to more accurately describe the material behavior. Wijeyeratne's research plans include
the development of constitutive models for additively manufactured Nickel-base superalloys
to address uncertainty in the resulting fatigue life performance of these materials
in safety-critical components for the aerospace industry.
Ph.D. in Mechanical Engineering, University of Central 91Â鶹ӳ», Orlando, 91Â鶹ӳ»,
2022
M.S in Mechanical Engineering, University of Central 91Â鶹ӳ», Orlando, 91Â鶹ӳ», 2016
BSc in Aerospace Engineering, Embry-Riddle Aeronautical University, Daytona Beach
Mechanics of materials and structures
Plasticity, Fatigue, Creep, and Thermomechanical Fatigue analysis
Constitutive modeling
Computational modeling using finite element analysis (FEA)
Nickel-base Superalloys
Reviewer, American Society of Mechanical Engineers (ASME) Turbo Expo Conference-2022-Present
Reviewer, international Journal of Plasticity-2023
Member, American Society of Mechanical Engineers (ASME)
Member, American Institute of Aeronautics and Astronautics (AIAA)
Wijeyeratne, N., Irmak, F., and Gordon, A. P. (November 29, 2022). "A Comparative
Study of Crystal Viscoplastic Modeling of Directionally Solidified Nickel-Base Superalloys."
ASME. J. Eng. Gas Turbines Power. February 2023; 145(2): 021017.
Wijeyeratne, N. P., Irmak, F., O'Nora, N., & Gordon, A. (2022). A Comparative Study
of Constitutive Modeling of an Aero-Engine Single Crystal Superalloy under Creep-Thermomechanical
Fatigue. In AIAA SCITECH 2022 Forum (p. 0629).
Wijeyeratne N, Irmark F, Gordon AP. Crystal visco-plastic model for directionally
solidified Ni-base superalloys under monotonic and low cycle fatigue, Proceedings
of ASME Turbo Expo 2021, virtual conference, USA: American Society of Mechanical Engineers
(ASME); 2021.
Wijeyeratne N, Irmark F, Gordon AP, Jeon JY. Crystal visco-plastic model for Ni-base
superalloys under thermo-mechanical fatigue, Proceedings of ASME Turbo Expo 2020;
2020, virtual conference, USA: American Society of Mechanical Engineers (ASME); 2020.
Wijeyeratne N, Irmak F, Gordon AP (2020) Predicting Responses of a Single Crystal
Ni-Base Superalloy under a Wide Range of Monotonic and Cyclic Conditions. American
Institute of Aeronautics and Astronautics (AIAA), Orlando, 91Â鶹ӳ», USA.
Wijeyeratne, N., Irmak, F., Geiger, G., Jeon, J. Y., & Gordon, A. (2019, June). A
Crystal Visco-Plastic Model for Ni-Base Superalloys Under Low Cycle Fatigue. In Turbo
Expo: Power for Land, Sea, and Air (Vol. 58684, p. V07AT31A019). American Society
of Mechanical Engineers.
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