ANALYSIS OF STRESSES IN AL-5SI ALLOY UNDER LOADING CONDITIONS

摘要

The alloy selected for this study was an Al base alloy containing 5% Si and 2% Cu. Tensile tests on notched round bars with three sizes of the notch radius were performed. Average stress triaxiality and ductility for the three types of tensile test specimens were obtained. A micromechanical model for the ductility of plastically deforming material was applied to the alloy using the finite-element program ABAQUS. The model is validated by comparing the predictions to experimental results.