I am using Workbench 14.5 structural and trying to model stretching of a 3D with a hole. the boundary conditions i am using are (as in the image): 1. frictionless support for below, left and back faces 2. displacement for right face as you can see in the result the upper face deforms and that is my problem. i want it to stay flat and just stretch and move. the same problem is in front face. I cant use frictionless support because the magnitude forces on other directions should be zero.