In this paper, simulations using various cyclic hardening models are performed to determine the effect of the hardening model that is used in a finite element analysis. Bi-linear, Armstrong-Frederick kinematic hardening model and Chaboche (third order non-linear) combined hardening model are used in finite element (FE) analysis to simulate material behavior under cyclic loading condition. Hardening parameters included in bilinear and non-linear hardening models are determined from monotonic stress-strain curve obtained from monotonic tensile test and parameters in Chaboche hardening model are determined from hysteresis loop obtained from cyclic tensile test. Simulation of notched C(T) test under cyclic loading is performed using three hardening models. Plastic strain, stress and plastic strain energy at notch tip of specimen are extracted from FE analysis results. Using energy based fatigue analysis, cycle to failure, the cycle at which crack initiation occurs at notch tip, are predicted and compared with experimental results. Through the comparisons, the effect of hardening model on the simulation result under cyclic load is confirmed.
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ASME 2018 Pressure Vessels and Piping Conference
July 15–20, 2018
Prague, Czech Republic
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-5162-3
PROCEEDINGS PAPER
Comparison of Various Cyclic Hardening Models for Notched C(T) Specimen Simulation Under Cyclic Loading
Jong-Min Lee,
Jong-Min Lee
Korea University, Seoul, South Korea
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Hune-Tae Kim,
Hune-Tae Kim
Korea University, Seoul, South Korea
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Yun-Jae Kim,
Yun-Jae Kim
Korea University, Seoul, South Korea
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Jin-Weon Kim
Jin-Weon Kim
Chosun University, Gwangju, South Korea
Search for other works by this author on:
Jong-Min Lee
Korea University, Seoul, South Korea
Hune-Tae Kim
Korea University, Seoul, South Korea
Yun-Jae Kim
Korea University, Seoul, South Korea
Jin-Weon Kim
Chosun University, Gwangju, South Korea
Paper No:
PVP2018-84579, V03AT03A051; 8 pages
Published Online:
October 26, 2018
Citation
Lee, J, Kim, H, Kim, Y, & Kim, J. "Comparison of Various Cyclic Hardening Models for Notched C(T) Specimen Simulation Under Cyclic Loading." Proceedings of the ASME 2018 Pressure Vessels and Piping Conference. Volume 3A: Design and Analysis. Prague, Czech Republic. July 15–20, 2018. V03AT03A051. ASME. https://doi.org/10.1115/PVP2018-84579
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