Error in non linear analysis

[Anonymous]

Hello,

I am having no convergence of a non linear problem. Its the case nº 14.  I ask for some guidance to resolve this problem.

I also attach the link too the file:

https://feupload.fe.up.pt/get/h6n3NCVGxn4iLDp

Thank you and regards.

[Rafal.Gaweda · Accepted solution]

Set Newton-Raphson method: