【求助】请教一个简单问题（初学）

lzc0

ini szz 17600 grad 0 0 15500 range z -8 -5.5
  
请问17600和后面的15500有关吗，这语句是何意啊＞？
　
FLAC3D里面自带的例子了。

chichilv

当然有关，在说明中有具体说明梯度应力的例子，你可以参考。
  在手册p 2-52
A linearly varying yy-stress component can be applied with the gradient keyword—for example,
apply syy = -20e6 grad 0,0,20e5 range y -20.1,-19.9 z 0,10
With this command, a yy-stress component is applied to boundary faces located between y = –20.1
and –19.9. The yy-stress varies linearly with z from yy = 0 at z = 10 to yy = –20e6 at z = 0.
具体的去看手册吧

lzc0

谢谢，原来是地基的初始应力啊！
十分感谢！！

princez

线性梯度应力的关系