JSME International Journal Series A Solid Mechanics and Material Engineering
Online ISSN : 1347-5363
Print ISSN : 1344-7912
ISSN-L : 1344-7912
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Study on the Fatigue Crack Growth Problem under Mode I+II Mixed Mode Condition with Elastic-Plastic Deformation
Masanori KIKUCHIToshiaki SATO
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2004 Volume 47 Issue 3 Pages 403-409

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Abstract

The fatigue crack growth test under mode II dominant condition is conducted. It is found that the crack growth direction can not be predicted by the conventional method. By the fracture surface observation, it is also found that the thickness effect strongly affects this behavior. Three dimensional elastic-plastic FEM analyses are conducted for this problem considering the Bauschinger effect. The change of the crack tip stress field during fatigue crack growth is studied. The criteria to predict the fatigue crack growth direction are studied and new criteria are discussed.

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© 2004 by The Japan Society of Mechanical Engineers
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