Fracture Analysis of High Strain Rate Torsion Samples of Aluminium Zinc Magnesium Copper Alloy

All materials have been historically tested at static loading conditions. With the advent of technology, the study of behaviour of materials at high strain rate was done using various methods. The principle of split Hopkinson bar was used to study high strain rate of material in the range of 102s-1 to 103s-1. Split Hopkinson bars were designed for all three modes of deformation and extensively used for compression and tension studies [1-8]. Owing to the difficulty of complications involved in making the Split Hopkinson torsion bar setup and the difficulties in making standard torsion sample, very few study in high strain torsion have been done so far.