Influence of input values changes on the simulation results in the Dynaform 5.2 software

Abstract

The paper concerns testing of the influence of input values (normal plastic anisotropy ratio, the strain-hardening exponent and the friction coefficient) changes on the main logarithmic strain values obtained by simulation of stamping drawing. With the use of Dynaform 5.2 software the drawing of cylindrical stamping with the bottom radius Rd = 23,5 mm (a hemisphere shape) was simulated partly for the drawing coefficient M = 0,57, partly for experimentally determined limit drawing coefficient Mm = 0,445. Some conditions were etablished which provide information about importance of the influence and when the influence can change the decision about drawability of a given component.