ISSN: 0090-3973
Page Count: 10

Measuring Stress Strain Curves to Large Strains on Sheet Metal

Bacha, A
Centr SMS UMR PECM, Ecole des Mines,

Feuerstein, M
Centr SMS UMR PECM, Ecole des Mines,

Desrayaud, C
Centr SMS UMR PECM, Ecole des Mines,

Klöcker, H
Centr SMS UMR PECM, Ecole des Mines,

(Received 9 June 2005; accepted 8 July 2006)

Abstract

The stress-strain response of aluminium sheet has been determined by a novel plane strain compression test on laminated samples up to equivalent strains of 1.2. The test sample is composed of several sheet layers glued together, machined to shape, and then compressed in a lubricated channel die along the “thin” directions. This simple test has been validated by a comparison of finite element simulations and experimental results. The stress-strain curves can be considered accurate up to strains of 1.2.

Keywords:
Large deformation, stress strain curve, aluminium automotive alloy, rolled sheet

Paper ID: JTE100082
DOI: 10.1520/JTE100082
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