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Anisotropic behaviour law for sheets used in stamping: A comparative study of steel and aluminium

For a car manufacturer, reducing the weight of vehicles is an obvious aim. Replacing steel by aluminium moves towards that goal. Unfortunately, aluminium's stamping numerical simulation results are not yet as reliable as those of steel. Punch-strength and spring-back phenomena are not correctly described. This study on aluminium validates the behaviour law Hill 48 quadratic yield criterion with both isotropic and kinematic hardening. It is based on the yield surface and on associated experimental tests (uniaxial test, plane tensile test, plane compression and tensile shearing).

preprint2008arXivOpen access
Jean-Jacques SinouBruno Macquaire
physics.gen-phphysics.class-ph
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Open access2 authors2 topics
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Jean-Jacques SinouBruno Macquaire

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