Volume 1, 2009DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|Page(s)||35 - 41|
|Published online||15 September 2009|
Novel pure-shear sheet specimen geometry for dynamic material characterisationJ. 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
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.
© EDP Sciences 2009