Difference of the Plastic Stress and Residual by Holloman and Hooke equation for two different steels

Jairo Aparecido Martins; Estaner Claro Romão

doi:10.15628/holos.2020.9449

Authors

Jairo Aparecido Martins Desch Canada Ltd.
Estaner Claro Romão Departamento de Ciências Básicas e Ambientais - Escola de Engenharia de Lorena - Universidade de São Paulo

DOI:

https://doi.org/10.15628/holos.2020.9449

Keywords:

Plastic stress, residual stress, alloyed and high strength materials, Holloman Equation and Hooke’s Equation

Abstract

This paper presents the applied stress, the residual stress and difference between them for two different materials, calculated by the combination of Hooke´s Law and Holloman Law. In order to calculate the stresses two different materials were chosen, the first is an alloyed steel SAE 4340 and the second a high strength steel UHB-20C. The results showed that both materials showed the same trend, which means the difference between the applied stress and the residual stress is minimal when applied stress is closer to material tensile strength. On contrary, when the applied stress is closer to the materials yield strength the difference is significantly higher.

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