Application of Cockroft-Latham criterion in FEM analysis of wire fracture in conventional drawing of high-carbon steel wire

摘要

This paper studies damage in the wiredrawing process using FEM software with a modified Cockroft-Latham criterion. The critical value of this criterion was determined by simulation of experiments where the wire was drawn through two dies. A simulation of hydrostatic stress distribution in the wire axis was also made. It has been found that both die angle and single reduction significantly affect distribution of hydrostatic stress, but correlation with Cockroft-Latham is relatively poor.