J-R fracture toughness of cold-worked TP316L stainless steel under seismic loading conditions
- Authors
- Kim, Jin Weon; Choi, Myung Rak; Kim, Yun Jae
- Issue Date
- 3월-2019
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Cold-worked TP316L stainless steel; Cyclic loads; Dynamic loads; Fracture toughness; Seismic loads
- Citation
- INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, v.171, pp.137 - 144
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
- Volume
- 171
- Start Page
- 137
- End Page
- 144
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/67224
- DOI
- 10.1016/j.ijpvp.2019.02.012
- ISSN
- 0308-0161
- Abstract
- This study conducted J-R fracture toughness tests on as-received and cold-worked TP316L stainless steels (SSs) under dynamic and cyclic loading conditions to investigate the effect of seismic loads on the fracture behaviour of age-degraded materials. Additionally, tensile tests were carried out to obtain the reference mechanical properties of both materials, and to evaluate the deformation behaviours under quasi-static and dynamic loads. Cold-worked (33%) TP316L SS was used in the test to simulate irradiation-hardened TP316L SS. The J-R fracture toughness tests were conducted under monotonic load with quasi-static and dynamic displacement rates, and under cyclic load with quasi-static displacement rate at room temperature and 316 degrees C. The results showed that the strength and fracture resistance of TP316L SS were considerably increased and reduced by 33% cold-working, respectively; the change in strength and fracture resistance was particularly notable at 316 degrees C. The dynamic loading effect on the deformation and fracture behaviours was negligible for both as-received and cold-worked TP316L SSs, regardless of test temperature. Cyclic loading considerably reduced the fracture resistance of the as-received TP316L SS, but the effect of cyclic loads on the fracture behaviours was insignificant for the cold-worked TP316L SS; in particular, the cyclic loading effect was negligible at 316 degrees C.
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