%0 Journal Article %T Fem Modifying the Resistance Curve of Weld Metal Solidification Crack Measured by Trans-Varestraint Test
可调拘束实验测量的焊接凝固裂纹阻力曲线的有限元法修正 %A DONG Zhibo %A WEI Yanhong %A LIU Renpei %A
董志波 %A 魏艳红 刘仁培 %J 金属学报 %D 2005 %I %X The Trans-Varestraint test was modeled with finite element method (FEM) and the local strains in the trail of weld molten pool were obtained with different bending strains. The results show that there is a strain concentration in the train of weld molten pool during Trans-Varestraint testing and the calculated local strains thus modify the tested average strains, that is the material resistance to weld solidification cracks. Moreover, the calculated local strains agree well with the measured local strains got with the combination of high speed CCD camera and the Trans-Varestraint test. Furthermore, the driving force to the solidification crack of the stainless steel SUS310 was calculated and compared with the modified resistance so that the weld solidification crack was predicted, which agrees well with the experimental results. The results indicate that the weld solidification crack can be predicted with combination of Trans-Varestraint test and FEM. %K material resistance of weld solidification crack %K Trans-Varestraint test %K local strain %K finite element method (FEM)
凝固裂纹阻力 %K 横向可调拘束实验 %K 局部应变 %K 有限元方法 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=D24ABCD0205CD503&yid=2DD7160C83D0ACED&vid=2001E0D53B7B80EC&iid=DF92D298D3FF1E6E&sid=5E191A234CD3698F&eid=141C24EC1980F602&journal_id=0412-1961&journal_name=金属学报&referenced_num=1&reference_num=8