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maradonan2

铁虫 (小有名气)

[求助] ansys 简单接触分析

ansys,板压圆球,对板施加了位移,想求解接触力与位移的关系曲线。编写了命令流,但是不成功,希望大神帮助查错,谢谢了!
finish$/clear$*afun,deg$/prep7

! 设定单元类型和材料(空心球节点:外径0.2,壁厚0.008)

a=(2.17/7850)**(1/3) !冲击方块边长

et,1,solid95
et,2,shell181
et,3,170
et,4,173
r,1,0.004,0.004,0.004,0.004

MP,EX,1,2.1e11
MP,PRXY,1,0.3
MP,DENS,1,7850
TB,KINH,1,1,5,plastic
TBPT,,0,0,267e6
TBPT,,0.0172106,370.339e6
TBPT,,0.040183,397.034e6
TBPT,,0.0999585,420.932e6
TBPT,,0.2,449.153e6

! 结构

sphere,,0.1,,90
vsbw,all
vdele,2,,,1
vdele,all
asel,s,loc,x,0$asel,a,loc,y,0$asel,a,loc,z,0
adele,all,,,1
alls
type,2
lesize,all,,,20
!lsel,s,loc,x,0$lsel,a,loc,y,0
!lesize,all,,,8,0.1,1
mshape,0,2d$mshkey,1
amesh,all
arsym,x,all$arsym,y,all !镜像出1/2球面
!arsym,z,all$nummrg,all !镜像出完整球面并merge
!nsel,s,loc,z,0.1
!nrefine,all,,,2
cm,ball,elem

! 刚性接触
wpoffs,,,0.105
blc5,0,0,a,a,0
type,2
real,2
esize,a/10
amesh,all
esel,s,elem,,ball
esel,inve
nsle,all
!nrefine,all,,,2
emodif,all,type,3
alls

! 柔性接触
esel,s,elem,,ball
type,4
real,2
esurf,,bottom
alls

! 定义边界条件
nsel,s,loc,z,0
d,all,all
nsel,s,elem,,ball
nsel,inve
d,all,ux,0
d,all,uy,0
d,all,uz,-0.005
alls
finish

/SOLU                          !进入求解器
autots,on
nlgeom,on
nsubst,1000
outres,all,all
SOLVE
finish
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