本人刚刚开始接触optistruct,在提交计算时出现:*** ERROR # 1800 ***
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.
Property ID = 158703
哪位大侠知道是什么原因?求解答,感激不尽!!!