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Interaction and Influence between Cracks in Different Positions through Finite Element Analysis

WANG Qingfeng~(1,2),HUANG Xiaoping~2,CUI Weicheng~2(1.School of Naval Architecture Ocean and civil Eng.,Shanghai Jiaotong University,Shanghai 200030,China;2.School of Naval Architecture and Ocean Eng.,Jiangsu University of Science and Technology,Zhenjiang Jiangsu 212003,China;3.China Ship Scientific Research Center,Wuxi Jiangsu 214082,China)  
Base on the finite element software France-2D,the J integration is utilized to calculate the stress intensity factor for the plate with multi-cracks.Through the definition of basic crack,disturbing crack and disturbing parameters,the influences of disturbing cracks on the stress intensity factor of basic crack are presented with the change of disturbing parameters.The regulation is analyzed.The results can be used as reference for the application.
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