Analysis of Damage Accumulations in High Strength Low Alloy Steels under Monotonic Deformation

AbstractIn continuum damage mechanics approach, damage accumulation takes place through void nucleation, void growth and void coalescence. Damage accumulation is influenced by the chemical compositions of the alloy, initial inclusions content and their distribution, stress triaxility, strain, stress, strain rate, grain size, initial micro-texture and temperature of deformation. In this study, a neural network based model has been created to analyse the complex correlation between the damage accumulations with its influencing variables in a variety of high strength low alloy steels under monotonic deformation. It has been confirmed that the predictions are reasonable in the context of metallurgical principles