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Integration between Modeling and Experiments for Crystalline Metals: From Atomistic to Macroscopic Scales III: Poster Session
Program Organizers: Arul Kumar Mariyappan, Los Alamos National Laboratory; Irene Beyerlein, University of California, Santa Barbara; Levente Balogh, Queen's University; Caizhi Zhou, University of South Carolina; Lei Cao, University of Nevada; Josh Kacher, Georgia Institute of Technology

Tuesday 11:00 AM
October 19, 2021
Room: Exhibit Hall B
Location: Greater Columbus Convention Center

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P1-22: Life Prediction of High Temperature Alloys Subject to Coupled Thermomechanical Fatigue-creep Condition: Abhilash Gulhane¹; Harshal Dhamade¹; Tejesh Dube¹; Jing Zhang¹; ¹Indiana University – Purdue University Indianapolis
    The objective of this research is to develop a finite element (FE) based model to predict the life of high-temperature alloys subject to the coupled thermomechanical fatigue (TMF)-creep condition. A unified viscoplasticity model is implemented using ANSYS to simulate the mechanical behaviors such as strain rate dependency, creep, and relaxation. The material parameters are calibrated in ANSYS TMF curve fitting tool based on the experimental isothermal strain control test data. After model calibration, the TMF-creep life is predicted using an Incremental lifetime model implemented in Ansys ACT.

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