Hi all

 I want to derive a load-displacement curve for a compoaite laminate shell which is subjected to a uniform displacement field in ABAQUS. The problem is somehow similar to example 1.1.14.

I have derived the data for Reaction force of each node and also for the Us. The curve for the maximum node is plotted but the data are half of the values reported in Example 1.1.14. I don't know what's wrong with it. Please help me with this problem.