【讨论】求助_材料去除怎么处理

cswbww

如果你要分析它的过程，我想，这个要用到单元生死。你设定一个临界温度，先做一次不考虑单元生死的分析，把材料整个分析一次；然后根据这个临界温度去除相关单元，做分析，应该可以达到效果。
另，模拟这个过程对初学者比较复杂，你应该先看载荷怎么施加，和单元的选择。最后再参考ANSYS的vm194写自己的命令。（不保证动态效果）

zy2100_hn

我也有这个问题

zy2100_hn

有没有人回答这个问题

molebuaa

我也正做这方面的内容，可以相互交流，不过刚刚接触也很多问题不懂。QQ:29384891

cxz790926

我也是个新手，也在做这方面的内容。刚开始接触，希望各位大侠能给一些例子，
了解一下单元生死的用法y

duklyon1983

终于找到组织了。我也准备做这个。谁把这个做出来，可以上院士了。

iomega

There might be one approach to simulate it:

For each step, use a threshold temperature to determine wether the element is evaporated. If so, DON'T EKILL it. Instead, use MPCHG command to change the element to a new material. The material has following thermal properties:
k_z = 1e9 W/m-K, k_x = k_y = 1e-9 W/m-K,  pou*C = 1J/m^3.
So each step there is no need to change the heat flux load condition.
Since k_z is so large, there is no temperature gradient in depth direction for such evaporated element. Also k_x = k_y = 0 prevent lateral heat diffusion into surrouding evaporated elements. As a result, the heat flux will be as if applied on the elements undernearth the evaporated elements.

shyburg

thank you for your answer,your methed is very novel,well,when i simulate the profile of the channel,i always can't obtain the perfect result,can you help me