Finite Element Modeling of the Problem of Stretching a Material with Zones of Altered Structure

Abstract

The article considers computer simulation of tensile tests of a rectangular cross-section rod with zones formed during heat treatment by a moving highly concentrated heat source, the characteristics of which differ from the properties of the base material. Based on the results of finite element modeling, the stress-strain state of a rod with one or more zones of altered structure along its entire length and on part of the length is investigated. The stress concentration coefficients in the vicinity of the treatment zones are determined.

Keywords

• mechanical characteristics of the material
• stress concentration coefficient
• finite element method
• local impact
• material structure
• stress intensity