CAJ | 학술논문

采用有限元分析软件ANSYS10.0对管道瞬时液相扩散连接接头处的残余应力分布进行数值模拟.结果表明,在冷却的初始阶段,焊缝及两侧的母材处的应力急剧下降,残余应力在此产生;冷却后,焊缝处应力下降,且低于两侧母材处的应力;其连接接头的最大应力出现在靠近焊缝两侧的母材上,中间层可以缓和应力的分布.
채용유한원분석연건ANSYS10.0대관도순시액상확산련접접두처적잔여응력분포진행수치모의.결과표명,재냉각적초시계단,한봉급량측적모재처적응력급극하강,잔여응력재차산생;냉각후,한봉처응력하강,차저우량측모재처적응력;기련접접두적최대응력출현재고근한봉량측적모재상,중간층가이완화응력적분포.
The numerical simulation of residual stresses in transient liquid-phase bonding(TLP) of pipeline was carried out by ANSYS 10.0. The restults show that, the residual stresses occurs at the initial stage of cooling, because the stresses of weld and near base materials sharply decline; afar cooling, the weld stresses drop, and lower than the both sides of the base metal; the maximum stresses of TLP joints in the base metal occurs on both sides of the near weld, intermediate layer can relieve the distribution of stresses.