*heading
*node
1,0.,0.,0.
2,1.,0.,0.
3,1.,1.,0.
4,0.,1.,0.
5,0.,0.,1.
6,1.,0.,1.
7,1.,1.,1.
8,0.,1.,1.
**
11,2.,0.,0.
12,3.,0.,0.
13,3.,1.,0.
14,2.,1.,0.
15,2.,0.,1.
16,3.,0.,1.
17,3.,1.,1.
18,2.,1.,1.
*nset,nset=lower1
1,2,3,4
*nset,nset=lower2
11,12,13,14
*nset,nset=upper1
5,6,7,8
*nset,nset=upper2
15,16,17,18
*element,type=coh3d8,elset=test
1,1,2,3,4,5,6,7,8
2,11,12,13,14,15,16,17,18
*cohesive section,response=traction separation,thickness=geometry,elset=test,material=mat1
*material,name=mat1
*elastic, type=traction, compression factor=2.0
2.e5, 1.e5, 1.e5
*boundary
lower1,1,3,
lower2,1,3,
*step,nlgeom
*static
*boundary
upper1,3,3,0.5
upper1,1,2,0.
upper2,3,3,-0.5
upper2,1,2,0.
*output,field
*element output
s,e
*el print
s,e
*end step