Self-organization of adiabatic shear bands in OFHC copper and HY-100 steel

TL;DR

This study models the self-organization of adiabatic shear bands in copper and steel, introducing a new numerical method to simulate localized plastic flow and analyzing key characteristics of the process.

Contribution

The paper presents a novel numerical approach based on the Courant--Isaacson--Rees scheme for simulating adiabatic shear bands in metals, including validation and application to specific materials.

Findings

Validated the numerical method with benchmark problems.

Analyzed stress, temperature, and localization in shear bands.

Compared results with existing theoretical predictions.

Abstract

In this paper we study the self-organization process of adiabatic shear bands in OFHC copper and HY-100 steel taking into account strain hardening factor. Starting from mathematical model we present new numerical approach, which is based on Courant -- Isaacson -- Rees scheme that allows one to simulate fully localized plastic flow. To prove accuracy and efficiency of our method we give solutions of two benchmark problems. Next we apply the proposed method to investigate such quantitative characteristics of self-organization process of ASB as average stress, temperature, localization time and distance between ASB. Then we compare the obtained results with theoretical predictions by other authors.