Estimation of Damage in high strength steels

Abstract

Damage is controlled by the chemistry of the material, initial inclusions or second phase particles' fractions with their size/shape distribution, stress triaxility, strain, stress, strain rate, strain path, grain size, initial crystallographic micro-texture and the temperature of deformation. In this study, a model has been developed to correlate the complex relationship between the extent of damage accumulations (i.e., void area fraction) with its influencing parameters in a variety of high strength low alloy steels under tension.The model has been applied to confirm that the predictions are reasonable in the context of metallurgical principles and other data publi-shed in the literatures.