TITLE:
Finite Element Study on the Development of Damage and Flow Characteristics in Al7075 Alloy during Ex-ECAP
AUTHORS:
Mehdi Shaban Ghazani, Beitallah Eghbali
KEYWORDS:
Finite Element Method; Extrusion; Equal Channel Angular Pressing; Al7075
JOURNAL NAME:
Modeling and Numerical Simulation of Material Science,
Vol.3 No.1,
January
21,
2013
ABSTRACT: In the present study, 3D-finite element method was conducted to investigate the deformation characteristics of Al7075 alloy during integrated extrusion-equal channel angular pressing. Effective strain, strain rate, mean stress, and damage distributions were evaluated. Severe cracking was observed at Al7075 sample after extrusion-equal channel angular pressing. Finite element results show that cracking is due to the positive mean stress and damage accumulation at the top surface of sample.