Unreasonable results of composite Tensile Test

Kouider

Dear colleagues,

I am writting to you regarding an issue in the results i optained from a model of Composite Tensile specimens. I have model the specimens in hypermesh as a Composite based plate model and i applied the fully clamped BC in one side and a load in Y direction (with respect to global coredinate) in the other side. the model is run uner Optistruct solver with nonlinear static analysis without Problem but the results I optained are an unerealistic. The displacements are with very large Amplitude and in Z direction(the load is in Y direction ) ????. I have atteched the model with this

request. can kindly check it and tell me what is wrong ???

 

 

Regards

 

Kouider

 

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Adriano_Koga

if your laminate is not symmetric and/or umbalanced, your laminate will have couplings in ABD matrices and can bend while you apply only tension.

 

https://books.google.com.br/books?id=oMph2kNG3yAC&pg=PA218&lpg=PA218&dq=unsymmetric+composite&source=bl&ots=kaNVHRyIUd&sig=ACfU3U0jcRer2ZUpbdgUnheoUweu7FGs5w&hl=pt-BR&sa=X&ved=2ahUKEwjS_Jqrx67qAhXIIrkGHdY5ATcQ6AEwDXoECAoQAQ#v=onepage&q=unsymmetric composite&f=false 

Kouider

@Adriano A. Koga you are absolutly Right thank you