请问大神 如何使顶板与滑块之间发生转动而不是剪切破坏？

长江D

对顶板施加位移约束，同时带动滑块移动，但是两者之间没有发生转动，滑块被剪切破坏

请问如何设置顶板与滑块之间的接触，实现滑块在平动同时相对顶板转动。

/PREP7                    ! 进入前处理模块

!采用实体单元进行建模

ET,1,SOLID185

!选用钢材

MP, EX, 1,205E9          ! 钢弹性模量

MP, NUXY, 1,0.277          ! 泊松比

MP, DENS, 1, 8.0E3               ! 密度

TB,BISO,1,1

TBDATA,1,248E6

R,1

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!FACT=1.25$DC=0.6              !滑块与底板

ET,2,CONTA174

KEYOPT,2,1,0

KEYOPT,2,2,1

KEYOPT,2,5,3

KEYOPT,2,9,2

KEYOPT,2,10,1

KEYOPT,2,12,2

MP,MU,2,0.1

R,2,,,0.1,0.001,,,0.0001,0.00005

RMODIFY,2,10,0.001,2

RMODIFY,2,21,1.25,0.6

ET,3,TARGE170

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

ET,4,MESH200,6

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!FACT=1.25$DC=0.6               !滑块与顶板

ET,5,CONTA174

KEYOPT,5,1,0

KEYOPT,5,2,1

KEYOPT,5,5,3

KEYOPT,5,9,2

KEYOPT,5,10,1

KEYOPT,5,12,2

MP,MU,3,0.02

R,3,,,0.1,0.001,,,0.0001,0.00005

RMODIFY,3,10,0.001,2

ET,6,TARGE170