首页|Three Dimensional Numerical Simulation for the Driving Force of Weld Solidification Cracking
Three Dimensional Numerical Simulation for the Driving Force of Weld Solidification Cracking
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The double ellipsoidal model of heat source is used to analyze the thermal distributions with a three dimensional finite element method (FEM). In the mechanical model, solidification effects are treated by a dynamic element rebirth scheme. The driving force is obtained in the cracking susceptible temperature range. Moreover, this paper presents the effect of solidification shrinkage, external restraint, weld start locations and material properties on the driving force. The comparison between the simulated driving force and the experimental measurements of the material resistance predicts the susceptibility of weld metal solidification cracking.
Weld metal solidification crackingMechanical strainDriving force
Zhibo DONG、Yanhong WEI、Renpei LIU、Zujue DONG
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State Key Laboratory of Advanced Welding Technology Production, Harbin Institute of Technology, Harbin 150001, China
Harbin Welding Institute, Harbin 150080, China
Financial support by the National Natural Science Foundation of China underScientific Research Foundation of Harbin Institute of Technology
NETL
NSTL
万方数据
维普
