Navindra Wijeyeratne

Dr. Navindra Wijeyeratne is an assistant professor of mechanical engineering at Florida Polytechnic University. Prior to joining Florida Poly, Wijeyeratne was a graduate research and teaching assistant at the University of Central Florida 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.

Education

• Ph.D. in Mechanical Engineering, University of Central Florida, Orlando, Florida, 2022
• M.S in Mechanical Engineering, University of Central Florida, Orlando, Florida, 2016
• BSc in Aerospace Engineering, Embry-Riddle Aeronautical University, Daytona Beach

Expertise

• Mechanics of materials and structures
• Plasticity, Fatigue, Creep, and Thermomechanical Fatigue analysis
• Constitutive modeling
• Computational modeling using finite element analysis (FEA)
• Nickel-base Superalloys

Professional Activities

• 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)

Select Publications

• 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. https://doi.org/10.1115/1.4055512
• 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). https://doi.org/10.2514/6.2022-0629
• 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. https://doi.org/10.1115/GT2021-59581
• 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. https://doi.org/10.1115/GT2020-14163
• 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, Florida, USA. https://doi.org/10.2514/6.2020-2107
• 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. https://doi.org/10.1115/GT2019-91903