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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
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 Title & Authors
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
Kim, Hune-Tae; Ryu, Ho-Wan; Kim, Yun-Jae; Kim, Jong-Sung; Choi, Myung-Rak; Kim, Jin-Weon;
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 Abstract
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 . 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.
 Keywords
Finite Element Analysis;Damage Simulation;Stress-Modified Fracture Strain Model;J-R Fracture Toughness Test;Side Groove;
 Language
Korean
 Cited by
 References
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