What about the second part of my question.
Should i consider stress stiffenning.
I have downloaded book and problem 19-4 looks very similar as you said it shows 4x4 so i will try to solve that part again.
Thank you for you help
Homework Statement
Homework Equations
1-Stiffness matrix?
2-When i am doing the deformation,should i consider stress stiffenning or just solve the problem as is
The Attempt at a Solution
I tried to form the necessary stiffness matrix but couldn't understand how should i...