i'm try to do this model by abaqus and i faced some problems.any help is appreciated.

it is a 3 layers plates,a viscoelastic material sandwich between 2 steels.any kind of help,e.i,papers,thesis or notes etc are

welcome.

i modeled the 2 steel as sheel 'S8R"and the rubber as contiuum  "c3d20r",rubber is not thin.