A study of fracture in elastic-plastic material (epfm)
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gianglh@hcmute.edu.vnKeywords:
study, material, elastic-plasticAbstract
J integral was calculated based on Ramsberg Osgood stress-strain relationship at 200C for compact tension (CT) of 304 stainless steel for plane stress and plane strain when the ratio between crack length a and width of specimen W was changed. Besides the results, J was also calculated and simulated in the case of plane strain and plane stress with ANSYS. J values for the case of plane stress and plane strain were different. J values increased with the increase of the ratio between crack length a and width of specimen W and increased rapidly when the ratio was high (a/W=0,7)
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