CPE4 elements; Static Step *Node 1, -1., 1. 5, -1., -1. 21, 1., 1. 25, 1., -1. 41, 3., 1. 45, 3., -1. ** *Element, type=CPE4 1, 1, 5, 25, 21 2, 21,25, 45, 41 *Elset, elset=I1 1,2 *Solid Section, elset=I1, material=Elas 1., *Material, name=Elas *Density 10., *Elastic 1e+08,0. ***** *amplitude,name=sequence 0,1, 0.8,1, 1,0 *Step,inc=1000, nlgeom Rigid Body Rotation *Dynamic,nohaf 0.1, 1. *controls,param=field 1.e-5, *boundary 1,1,2 *cload,amplitude=sequence 41,2,-10 *output,field *node output u, *End Step **************** *Step,inc=1000, nlgeom Rigid Body Rotation *Dynamic,nohaf 0.1, 1. *model change,remove 2, *end step