3-D numerical simulation of driving force of weld solidification cracking in stainless steel thick plate

被引:0
|
作者
Dong, ZB [1 ]
Wei, YH
Liu, RP
Dong, ZJ
机构
[1] Harbin Inst Technol, State Key Lab Adv Welding Technol Prod, Harbin 150001, Peoples R China
[2] Harbin Welding Inst, Harbin 150080, Peoples R China
关键词
solidification cracking; strain field; element rebirth technique;
D O I
暂无
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Double ellipsoidal heat source model and finite element method were used to analyze 3-D welding temperature distributions and the driving force of weld solidification cracking. The comparisons between the simulated and experimental results show the model is good for three-dimensional numerical simulations. The dynamic displacement and strain evolutions were calculated, which induce the formation of solidification cracking in the cracking susceptible temperature range. In the model, the solidification effects were treated by a dynamic element rebirth scheme. Moreover, the calculated driving force of solidification cracking and the measured resistance of solidification cracking were compared and the susceptibility of weld solidification cracking was predicted.
引用
收藏
页码:214 / 218
页数:5
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