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DEFORM V14.0.2 Manual

LMTSTR

(Object Data)
Last updated on : 27-09-2023

LMTSTR Object, LimitSrate, Fixed_flag


OPERAND DESCRIPTION DEFAULT
Object Object number None
LimitSrate Limiting strain rate None
Fixed_flag = 0 , Not fixed, changable  
= 1 Fixed, do not change in FEM None  

DEFINITION

LMTSTR specifies a limiting value of effective strain rate under which the material is considered rigid.

REMARKS

The recommended value for LimitSrate is .1% to 1% of the average strain rate (AVGSTR). If the solution is having difficulty converging at the 1% level, increase LimitSrate up to 10% of the average strain rate. This is recommended for a couple of steps only, then reset. If LimitSrate is too small, the solution may have difficulty converging. If it is too large the accuracy of the solution will be degraded. The value of LimitSrate is updated by DEFORM during the simulation when there is a significant change in the strain rate. Applicable object types: Plastic, Porous.

Deformation iteration Keywords: AVGSTR