期刊
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
卷 135, 期 -, 页码 609-620出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijmecsci.2017.11.037
关键词
Ductile crack growth simulation; Multi-axial fracture strain energy; Finite element damage analysis; Very low-cycle fatigue
资金
- National Research Foundation of Korea (NRF) - Ministry of Science, ICT and Future Planning [NRF-2017R1A2B2009759]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry & Energy, Republic of Korea [20141520100860]
This paper presents a ductile crack growth simulation method for monotonic and reverse cyclic loading with large-scale yielding using the damage model based on the multi-axial fracture strain energy. The damage model has two parameters which can be determined from tensile and fracture toughness data under the monotonic loading condition. The determined damage model then can be used to simulate ductile crack growth subjected to reverse cyclic loading with large-scale yielding. The proposed method is validated against test data for SA508 Gr.1a and TP316 under monotonic and reverse cyclic loading with three different reverse loading ratios. (C) 2017 Elsevier Ltd. All rights reserved.
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