焊接
有限元法
熔焊
传热
工作(物理)
热的
材料科学
可塑性
压力(语言学)
接头(建筑物)
机械
对焊
结构工程
机械工程
工程类
热力学
冶金
复合材料
物理
语言学
哲学
作者
Andrés Anca,Alberto Cardona,José Risso,Vı́ctor D. Fachinotti
标识
DOI:10.1016/j.apm.2010.07.026
摘要
This work deals with the simulation of fusion welding by the Finite Element Method. The implemented models include a moving heat source, temperature dependence of thermo-physical properties, elasto-plasticity, non-steady state heat transfer, and mechanical analysis. The thermal problem is assumed to be uncoupled from the mechanical one, so the thermal analysis is performed separately and previously to the mechanical analysis at each time step. The mechanical problem is based on the thermal history. A special treatment is performed on mechanical elements during the liquid/solid and solid/liquid phase changes to account for stress states. The three-dimensional stress state of a butt-welded joint is obtained as an example of an application.
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