Experiments on stress-triaxiality dependence of material behavior of aluminum alloys

Author(s)

Driemeier, Larissa ^[1] ; Bruenig, Michael ^[2] ; Micheli, Giancarlo ^[1] ; Alves, Marcilio ^[1]

Affiliation

^[1] Univ Sao Paulo, Grp Solid Mech & Struct Impact, Dept Mechatron & Mech Syst Engn, BR-05508900 Sao Paulo - Brazil

^[2] Tech Univ, Lehrstuhl Baumech Stat, D-44221 Dortmund - Germany

• Document type: Journal article
• Source: MECHANICS OF MATERIALS; v. 42, n. 2, p. 207-217, FEB 2010.
• Web of Science Citations: 50

Abstract

The paper presents and discusses experimental procedures, visual observations and test results considered important to obtain data that can be used in validation of constitutive relations and failure criteria. The aim is to investigate the combined effects of stress intensity, stress-triaxiality and Lode parameter on the material response and failure behavior of aluminum alloys. Smooth and pre-notched tensile and shear specimens were manufactured from both very thin sheets and thicker plates to cover a wide range of stress triaxialities and Lode parameters. In addition, modified Arcan specimens were designed allowing investigation of the effect of sudden changes in stress states and deformation modes on the material behavior. (C) 2009 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 04/15404-0 - Structural impact
• Grantee: Marcílio Alves
• Support Opportunities: Research Projects - Thematic Grants