想要做一个关于施加挤压约束的拓扑优化,出现如下问题,请问是什么原因呢?求高手指导!
Stress/strain/force response is applied to topology or free-size domain. For stress-constrained topology or free-size optimization, please use the STRESS option on the design variable definition card.下面是我设置的一些参数:
目标:体积最小(min volume)
约束:Y方向位移小于4mm,stress小于177MPa
设计变量:设计空间的单元密度