Evaluation of the effect of fracture resistance curve change owing to the presence or absence of side groove in C(T) specimen on finite element failure model parameter determination

Hune Tae Kim, Ho Wan Ryu, Yun Jae Kim, Jong Sung Kim, Myung Rak Choi, Jin Weon Kim

研究成果: Article査読

抄録

In this paper, the effect of J-R curve changes on the determination of parameters in a failure model owing to the presence or absence of a side groove in a C(T) specimen is investigated. A stress-modified fracture strain model is implemented for FE damage simulations. C(T) specimens were taken from SA508 grade 1a low-alloy steel piping material, and some of them were processed with a side groove. Fracture toughness tests were performed at room temperature and at 316°C. The parameters of the failure model were determined by damage simulations using the J-R curves obtained from the tests. Finally, the results show that the determination of failure model parameters is not affected by variations in J-R curves owing to the presence or absence of a side groove.

本文言語English
ページ(範囲)539-546
ページ数8
ジャーナルTransactions of the Korean Society of Mechanical Engineers, A
40
6
DOI
出版ステータスPublished - 2016 6 1
外部発表はい

ASJC Scopus subject areas

  • 機械工学

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