Three dimensional numerical simulation for the driving force of weld solidification cracking

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

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2005年 / 21卷 / 03期

关键词：

weld metal solidification cracking; mechanical strain; driving force;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：399 / 402

页数：4

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