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本文对局部经受高温热循环构件的热弹塑性应力进行了有限元分析。文中考虑到材料机械性能随温度的变化,采用修正后的增量变刚度法,编制了计算机程序,对一个具体焊接试件进行了实例分析计算并与实测结果相比较。
In this paper, finite element analysis is performed on the thermoelastic-plastic stress of a part subjected to a high-temperature thermal cycle. Taking into account the changes in the mechanical properties of the material with temperature, a modified incremental stiffness method was used to program a computer program. An example of a specific welding test piece was analyzed and compared with the measured results.