期刊
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
卷 87, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.euromechsol.2021.104211
关键词
Ductile fracture simulation; Finite element damage analysis; Fracture toughness estimation; Small punch test; Stress-modified fracture strain energy density
类别
资金
- National Research Foundation (NRF) - Ministry of Science and ICT [NRF-2018M2A8A4084016]
- National Research Foundation of Korea [2018M2A8A4084016] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This paper presents a numerical method for simulating ductile fracture of a cracked pipe using small punch test data, with parameters in the damage model extracted solely from small punch test data. The proposed method is validated by comparing simulation results with TP316L experimental data, showing good agreement in pipe tests and faster crack growth in compact tension tests. The effect of stress triaxiality on prediction accuracy is also discussed.
This paper proposes a numerical method to simulate ductile fracture of a cracked pipe using small punch test data. The method is using FE damage analysis method based on the multi-axial fracture strain energy density model. The parameters in the damage model can be extracted solely from small punch test data, using which compact tension and circumferential through-wall cracked pipe tests are simulated. To validate the proposed method, simulation results are compared with TP316L experimental data. For the compact tension test, faster crack growth is predicted but for the pipe test, good agreement is obtained. The effect of the stress triaxiality on the prediction accuracy is discussed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据