A numerical simulation model of cyclic hardening behavior of AC4C-T6 for LNG cargo pump using finite element analysis |
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| Authors: | Jang Hyun Lee Kyung Su Kim Jae Beom Lee Yong Sik Yang Mi Ji Yoo |
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| Affiliation: | 1. Australasian Joint Research Centre for Building Information Modelling, Curtin University, Australia;2. School of Mathematics and Computer Sciences, Anhui Normal University, China;3. Guangdong University of Technology, China;4. Department of Mathematics and Statistics, Curtin University, Australia;1. Department of Engineering, University of Ferrara, Via Saragat 1, 44122 Ferrara, Italy;2. Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, UK;1. University of Waterloo, The Department of Mechanical and Mechatronics Engineering, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada;2. Warsaw University of Technology, Institute of Heavy Machinery Engineering, 02-524 Warsaw, ul. Narbutta 85, Poland;1. Marine Engineering College, Dalian Maritime University, Dalian, 116026, China;2. Energy Research Institute, Nanyang Technological University, Singapore, 639798, Singapore;3. School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore;4. Department of Energy Sciences, Lund University, Lund SE, 22100, Sweden;1. Institute for Mathematics and Computer Science, University of Groningen, P.O. Box 407, 9700 AK Groningen, The Netherlands;2. MARIN, P.O. Box 28, 6700 AA Wageningen, The Netherlands |
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| Abstract: | This paper is concerned with the evaluation of cyclic hardening models within the stress–strain behavior of aluminum alloy AC4C-T6 that can be used to LNG cargo pump operating in cryogenic temperature. To insure the strength assessment of LNG cargo pump, material model of cyclic hardening and plasticity for aluminum alloy AC4C-T6 is investigated through FEA (Finite Element Analysis) with various hardening options including linear and non-linear hardening, isotropic and kinematic hardening, and combined hardening model. Monotonic tensile and cyclic tensile experiments for AC4C-T6 alloy were performed at room temperature and temperature of ?165 °C. Parameters of each hardening model are obtained from the experimental data; thus five hardening models are numerically simulated thereafter. Appropriate hardening models which describe the cyclic stress–strain relationship are investigated through the simulations of cyclic hardening behavior by FEA. In order to verify the predicted behavior of cyclic hardening obtained by FEA, the results of FEA and those measured by experiments are compared. |
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