Authors : N.A. Rahma, S. Abdulla, W.F.H. Zamr, M.F. Abdullah, M.Z. Omar and Z. Sajuri
Abstract: his study presents the computational-based ballistic performance of metallic panel using different constitutive material models. Finite element model of metallic panel was constructed using a commercial software package reliable for high velocity impact. Three different constitutive models were utilized in the finite element analysis: Cowper-Symonds, Johnson-Cook and Zerilli-Armstrong model. The target steel panel was subjected to projectile velocity in a range of 750 msec–1- 950 msec–1 and the residual velocity resulting from each constitutive model was quantified and compared with data from previous experiment. Cowper-Symonds model exhibited largest percentage difference of 10.3 and Johnson-Cook model was fitted the best with the experimental data at percentage difference of 1.9. This finding will be later used for investigating the performance of various types of metallic materials under high velocity impact.
N.A. Rahma, S. Abdulla, W.F.H. Zamr, M.F. Abdullah, M.Z. Omar and Z. Sajuri, 2016. Computational Ballistic Performance of Metal Panel using Different Material Constitutive Models. Journal of Engineering and Applied Sciences, 11: 375-379.