Novel pure-shear sheet specimen geometry for dynamic material characterisation

Issue		DYMAT 2009 Volume 1, 2009 DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading


Page(s)		35 - 41
Section		Experimental Techniques
DOI		http://dx.doi.org/10.1051/dymat/2009005
Published online		15 September 2009

DYMAT 2009 (2009) 35-41
DOI: 10.1051/dymat/2009005

Novel pure-shear sheet specimen geometry for dynamic material characterisation

J. Peirs, P. Verleysen, W. Van Paepegem and J. Degrieck

Ghent University, Department of Materials Science and Engineering, 9000 Gent, Belgium

Published online: 15 September 2009

Abstract
A novel sheet specimen geometry for dynamic pure-shear experiments is proposed. Finite element simulations in ABAQUS/Explicit are used to optimize the specimen geometry. Main objective is to obtain a homogeneous stress state with a low stress triaxiality in the specimen zone subjected to shear. The proposed geometry is used to characterize the dynamic shear behaviour of a Ti-6Al-4V alloy. High speed photography and digital image correlation are used to study the local behaviour of the specimen. The experiments are compared with the simulations. It is found that the maximal strain reached is higher than in tensile tests of this material. The shear experiments thus provide valuable information for material modelling.

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