flac3d运行后出现 "zero stiffness in gride-point 1"是什么原因？
以下是编写的命令：n
ge z b s 70 100 4 p0 0 0 0 p1 150 0 0 p2 0 200 0 p3 0 0 3.4 group zhijiedi
m mo
prop den 2410 bu 1.58e9 sh 1.2e9 c 1e7 fric 30 ten 1.9e6 ran group zhijiedi
ge z b s 70 100 3 p0 0 0 3.4 p1 150 0 3.4 p2 0 200 3.4 p3 0 0 5.73 group mei
m mo
prop den 1350 bu 1.67e9 sh 0.3e9 c 6e6 fric 30 ten 3.1e6 ran group mei
ge z b s 70 100 2 p0 0 0 5.73 p1 150 0 5.73 p2 0 200 5.73 p3 0 0 7.38 group niyan
m mo
prop den 2400 bu 1.58e9 sh 1.2e9 c 1e7 fric 30 ten 1.9e6 ran group niyan
ge z b s 70 100 4 p0 0 0 7.38 p1 150 0 7.38 p2 0 200 7.38 p3 0 0 10.49 group xishayan
m mo
prop den 2560 bu 2.5e9 sh 1e9 c 2e7 fric 30 ten 4.11e6 ran group xishayan
fix x ran x -.1 .1
fix x ran x 149.9 150.1
fix y ran y -.1 .1
fix y ran y 199.9 200.1
fix z ran z -.1 .1
ini sxx -2.3e6 ran x -.1 .1
ini sxx -2.3e6 ran x 149.9 150.1
ini syy -2.3e6 ran y -.1 .1
ini syy -2.3e6 ran y 199.9 200.1
ini szz -4.6e6 ran z 10.489 10.491
set gravity 0 0 -10
solve
运行后出现"zero stiffness in gride-point 1"不知道是什么原因，请高手指点 要么建模本构模型计算坐标错，要么pro 赋值错误 单元没有赋好属性，建议检查命令流，我也出现过同样问题，已解决 输入 plot bl prop bulk
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