Element delatation for Severe Plastic Deformation (SPD) process

Dear all,

I am using Abaqus/explicite. My material definition is elasto plastic with stress strain values up to strain of 15!. After borthering tries now I think if I can set "Shear Failure Criteria Element Deletation option", it is possible to avoid this error. But I cannot find this option. Could someone guide me what exactly should I do in order to add distorted element deletation option and how? (an step-by-step tutorial will be approciate)

More Explanation about process:

I am modelling an special type of bulk metal forming named High Pressure Torsion. In this process an specimen with a 50mm length and 10mm diameter is fully confined inside a two-part die (each part of die have a cavity with 23mm length and 10mm diameter) After locating specimen inside of the dies, they compressed against eah other in order to produce hydrostatic pressure in a specimen in order of 5GPa. Now, we fix one of die pieces and revolve another one to about 3 full revolutions. When I am modelling this process some of specimen elements flow between die parts and distored (after showing a long strain). This cause my model to stop.

 Best Thanks, Mehdi