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ZHANG Zhong-ping, HUO Li-xing, WANG Dong-po, ZHANG Yu-feng. Effect of sprayed coatings on stress intensity factor of weld toe crack of cruciform welded joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (2): 85-88.
Citation: ZHANG Zhong-ping, HUO Li-xing, WANG Dong-po, ZHANG Yu-feng. Effect of sprayed coatings on stress intensity factor of weld toe crack of cruciform welded joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (2): 85-88.
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Effect of sprayed coatings on stress intensity factor of weld toe crack of cruciform welded joints

  • School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China

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  • Received Date: June 19, 2005
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  • Both two-dimensional and three-dimensional models were founded according to non-loaded cruciform welded joints.The stress intensity factors of weld toe cracks were calculated by using finite element analysis software ANSYS.The effects of elastic modulus of the sprayed coating and crack size on stress intensity factor was analyzed.The calculated results show that plasma sprayed coating is effective to decrease the stress intensity factor of weld toe.The stress intensity factor of a certain crack decreased while the elastic modulus of the sprayed coating increased.When Ec/Ep=0.6,the stress intensity factor of two-dimensional model decreases by 62.5%,and that of three-dimensional model decreases by 42.6%.
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