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以下是我用dynaform做热成形时出现的一些问题，希望有经验的大神多多指教
1.首先出现关于主从面定义方向问题，计算时出现
** Warning in definition of contact 1
Master surface offset used in forming contact.
For this to work properly in thermal contact
the master surface normals MUST point in the
direction towards the slave surface.
Please check your model.
** Warning in definition of contact 2
Master surface offset used in forming contact.
For this to work properly in thermal contact
the master surface normals MUST point in the
direction towards the slave surface.
Please check your model.
** Warning in definition of contact 3
Master surface offset used in forming contact.
For this to work properly in thermal contact
the master surface normals MUST point in the
direction towards the slave surface.
Please check your model.
我想请教大神们，我在定义的时候都定义了从面法向指向主面啊，这是什么问题呢，这个warning出现了很多次。
2.再就是算法不收敛的问题了，想请教一下，有没有用MAT106材料做过模拟的，指教一下呗
** Warning plasticity algorithm did not converge for MAT106
3.呃，最后就是求解时间步设置的不对了
** Error - the minimum time step has been reached and
the maximum temperature change is greater than specified
希望有经验的大神对热冲压方面进行一些指导 多谢了 |
