High-Strain-Rate Shear Testing Applied to Ti-6Al-4V
In this contribution, two experimental techniques to study the dynamic shear behaviour of metals are presented and applied to Ti-6Al-4V. For bulk materials hat-shaped specimens are subjected to a high-strain-rate load in a split Hopkinson compression bar set-up. For sheet materials a purpose-developed, novel shear specimen geometry, is loaded in a Hopkinson tensile bar set-up. The value of both techniques to assess the dynamic material behaviour is discussed. The experiments are optimized by means of numerical simulations. Digital image correlation is used to extract the specimen deformation from high speed camera recordings. It is shown that the dynamic behaviour, including fracture of Ti-6Al-4V differs considerably from the static behaviour. Both experimental techniques gain complementary information.
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
J. Peirs et al., "High-Strain-Rate Shear Testing Applied to Ti-6Al-4V", Advanced Materials Research, Vols. 89-91, pp. 437-442, 2010