ansys数值模拟，利用ANSYS单元生死和热-结构耦合分析功能进,行焊接过程仿真, 计算焊接过程中的温度分布和应力分布以及冷却后的焊缝残余应力。-Numerical simulation ansys, using ANSYS cell fate and thermal- structural coupling analysis capabilities into the line of welding process simulation to calculate the temperature distribution during welding and weld residual stress distribution and stress after cooling.