*HEADING
Center crack, coarse mesh, fully integrated elements
*RESTART,W
*NODE
1,
7, 10.
47,10., 10.
127, -10., 10.
167, -10.
49, 10., 20.
129, -10., 20.
161,
*NGEN,NSET=END1
47,127,20
*NGEN,NSET=END2
49,129,20
*NFILL
END1,END2,2,1
*NGEN,NSET=TIP
1,161,20
*NGEN,NSET=OUTER
7,47,20
47,127,20
127,167,20
*NFILL,SINGULAR=1
TIP,OUTER,6,1
*ELEMENT,TYPE=CPE8
1, 1,3,43,41, 2,23,42,21
*ELGEN,ELSET=ALLE
1,3,2,1,4,40,10
13,2,2,1,2,40,10
*NSET,NSET=XAXIS,GENERATE
1,7
*NSET,NSET=YAXIS,GENERATE
127,129
127,167,20
*ELSET,ELSET=PULL
14,24
*NSET,NSET=CRACK,GENERATE
1,161,20
*SOLID SECTION,MATERIAL=A1,ELSET=ALLE
1.,
*MATERIAL,NAME=A1
*ELASTIC
207000,.3
*BOUNDARY
XAXIS,2
YAXIS,1
*STEP
*STATIC
*DLOAD
PULL,P2,-100.
*CONTOUR INTEGRAL,FREQ=1,CONTOURS=3,SYMM,OUTPUT=BOTH
CRACK,1,0
*CONTOUR INTEGRAL,FREQ=1,TYPE=K FACTOR,CONTOURS=3,SYMM,OUTPUT=BOTH
CRACK,1,0
*ENERGY PRINT
*NODE FILE,NSET=CRACK
U,
*NODE PRINT,FREQ=0
U,RF
*EL PRINT,FREQ=0
S,E
*END STEP
以上是帮助里的一个例子nlff11f8c.inp,不明白的是它的加载命令
pull,p2,-100,数值是负的,应与坐标轴反向,我觉得方向应是向下,但是导入CAE后显示方向是向上,如图所示,请大侠们释疑,谢了 |