[alfonsojurado]

Hello,

if somebody knows something about this topic, I will be very grateful.

I want to know how is the behavior of the option of mesh stiffness. I am trying to avoid breaking elements when a subdomain1 is moving according to surge in X direction. the rest of the domain is mesh motion unspecified option. I tried different options modifying model exponents of increase near boundaries/increase near small volumes and value of mesh stiffness directly but the same error occurs every time: the mesh of subdomain1 fatally deforms (negative volume) in the border between subdomain1 and the rest of domain while all I want is that the mesh of the rest of domain deforms the same as subdomain1.

thank you very much for your help.

Have a nice day!!

Alfonso