flac3d 5.0常用命令集锦

建 模

1、调用文件：

①文件与工程在同一个文件夹，只写文件名即可：If the called file is located in the same folder as the FLAC3D project file, then only the file name need be entered with the CALL command.

②不在同一个文件夹，全路径：Otherwise, the file may be called by specifying its complete path (e.g., c:\myfolder\file.dat ).

Undo ;撤销上一条命令

2、创建 旋转 缩放视图

3、建模命令

model mech mohr ;莫尔库伦模型

model mech elastic ;弹性模型

set grav 0, 0, -9.81 ; 重力加速度 negative z -direction. （垂直向下！常用的）

下下面面这这代代码码，，是是沿沿着着--y y 方方向向的的重重力力加加速速度度，，注注意意区区别别！！！！！！！！

gen zone brick size 6,8,8 p0 -10, -10, -20 ... ;省略号表示写不下后面继续

p1 10, -10, -20 ...

p2 -10, 10, -20 ...

p3 -10, -10, 0

plot zone

gen zone brick size 6,8,8 p0 -10, -10, -20 ... ;不规则六面体

p1 10, -10, -20 p2 -10, 10, -20 ...

p3 -10, -10, 0 p4 10, 10, -20 ...

p5 -10, 10, 10 p6 10, -10, 0 ...

p7 10, 10, 10

plot current plot Plot01

plot clear

plot zone

Undo ;撤销命令

set logfile 127X1001.txt

set log on truncate

set log off

list zone prin range x 0 1 y 0 1 z 0 1 ;显示指定范围内各单元的主应力，结果如下

Hist命令：

①命令编号按顺序从1开始：each history is numbered sequentially from 1 as it is entered via the HISTORY command.

②查找显示所有的his命令：Return to the Flac3D> prompt and type

list hist

for a listing of the histories and their corresponding numbers.

hist nstep 5 ;每5步记录1次。默认是10步记录1次

hist add ratio ; 记录maximum unbalanced force ratio

hist add gp zdisp 4 4 8 ;记录节点的位移

model null range x=2,4 y=2,6 z=5,10 ;To excavate the trench,enter

The dimensions of the excavation region (i.e., the null material) are defined by the x-, y- and z-coordinate range.

set large ; 设置大变形large-strain logic is specified

ini xdis 0 ydis 0 zdis 0 ;位移归零

solve

save trench ; 保持计算结果的文件“TRENCH.F3SA V”不需要后缀

4、group命令(注意新版本的区别，group zone)

gen zone brick size 6 6 6

group zone Tunnel range x 1 6 y 0 6 z 1 5 ;设置group

model mech mohr ; 莫尔库伦模型model mech null range group Tunnel ;

group zone Tunnel range cylinder end1 100 105 100 end2 100 95 100 radius 3 group zone Matrix range group Tunnel not

; naming RANGES that are fixed in space and unrelated

; to the model geometry - represents stratigraphy...

range name Layer1 plane dip 0 dd 0 ori 0 0 0 above

range name Layer2 plane dip 0 dd 0 ori 0 0 0 below

prop bulk 1e8 shear 0.5e8 coh 0 tens 0 fric 35 range nrange Layer1

prop bulk 1e7 shear 0.3e7 coh 1e7 tens 0 fric 0 range nrange Layer2

pl zone colorby group

4、Interface命令

以下是切割模型法生成interface：寺河模拟用的

pl zone

gen zone brick p0 0 0 0 p1 200 0 0 p2 0 40 0 p3 0 0 4 size 100 20 2 group 1 ; gen zone brick p0 0 0 4 p1 200 0 4 p2 0 40 4 p3 0 0 8 size 100 20 2 group 2 ; gen separate group 1

interface 1 wrap first group 1 second group 2

interface 1 maxedge 0.5

显示interface：