焊接模拟ansys 实例 !下面的命令流进行的是一个简单的二维焊接分析, 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。 finish /clear /filnam,1-2D element birth and death /title,Weld Analysis by "Element Birth and Death" /prep7 /unit,si !采用国际单位制 !****************************************************** et,1,13,4 !13 号二维耦合单元, 同时具有温度和位移自由度 et,2,13,4 !1 号材料是钢 !2 号材料是铝 !3 号材料是铜 !铝是本次分析中的焊料, 它将钢结构部分和铜结构部分焊接起来 !下面是在几个温度点下, 各材料的弹性模量 mptemp,1,20,500,1000,1500,2000 mpdata,ex,1,1,1.93e11,1.50e11,0.70e11,0.10e11,0.01e11 mpdata,ex,2,1,1.02e11,0.50e11,0.08e11,0.001e11,0.0001e11 mpdata,ex,3,1,1.17e11,0.90e11,0.30e11,0.05e11,0.005e11 !假设各材料都是双线性随动硬化弹塑性本构关系 !下面是各材料在各温度点下的屈服应力和屈服后的弹性模量 tb,bkin,1,5 tbtemp,20,1 tbdata,1,1200e6,0.193e11 tbtemp,500,2 tbdata,1, 933e6,0.150e11 tbtemp,1000,3 tbdata,1, 435e6,0.070e11 tbtemp,1500,4 tbdata,1, 70e6,0.010e11 tbtemp,2000,5 tbdata,1, 7e6,0.001e11 ! tb,bkin,2,5 tbtemp,20,1 tbdata,1,800e6,0.102e11 tbtemp,500,2 tbdata,1,400e6,0.050e11 tbtemp,1000,3 tbdata,1, 70e6,0.008e11 tbtemp,1500,4 tbdata,1, 1e6,0.0001e11 tbtemp,2000,5 tbdata,1,0.1e6,0.00001e11 ! tb,bkin,3,5 tbtemp,20,1 tbdata,1,900e6,0.117e11 tbtemp,500,2 tbdata,1,700e6,0.090e11 tbtemp,1000,3 tbdata,1,230e6,0.030e11 tbtemp,1500,4 tbdata,1, 40e6,0.005e11 tbtemp,2000,5 tbdata,1, 4e6,0.0005e11 ! !材料密度(假设为常值) mp,dens,1,8030 mp,dens,2,4850 mp,dens,3,8900 ! 热膨胀系数(假设为常值) mp,alpx,1,1.78e-5 mp,alpx,2,9.36e-6 mp,alpx,3,1.66e-5 !泊松比(假设为常值) mp,nuxy,1,0.29 mp,nuxy,2,0.30 mp,nuxy,3,0.30 !热传导系数(假设为常值) mp,kxx,1,16.3 mp,kxx,2,7.44 mp,kxx,3,393 !比热(假设为常值) mp,c,1,502 mp,c,2,544 mp,c,3,385 !热膨胀系数(假设为常值) !由于该13 号单元还有磁自由度, 此处假设一磁特性, 但...
