About indentation simulation with Ansys

Hi,all

       Recently,I met some problems about intendation simulation with Ansys.My simulation consider failure and large deflection.But the elements happen to distortion when the defelction became very large. So I have a confusion about how to handle the element distorted. Who have any idea about that? 

       My simulation is a quasi-static problem, How to use Ls-dyna to simulation this problem if the Ansys can't solve the element distortion efficient? Thanks a lot!