Dynamic response of Advanced Placed Ply composites

This work investigates the high strain rate behavior of AP-PLY composites. The large representative volume elements and brittle nature this material necessitated use a bespoke split-Hopkinson bar apparatus. baseline laminates were subjected to tensile loading at rates 30 s −1 . Results compared with quasi-static data evaluate whether laminate architecture introduced any dependency. In addition, dynamic experiments simulated using multiscale modeling framework, providing further insights into micromechanisms governing behavior. moduli composites found be independent, however, strengths marginally higher than those their counterparts. At rates, concentrations induced by geometry individual tapes through thickness undulations tow boundaries less significant due reduced out-of-plane straightening delamination. As result, no reduction in strength comparison was obtained. These differences deformation led an improvement damage tolerance when loading. • response is investigated for first time. experimental campaign conducted world’s largest Split Hopkinson Bar. Further insight failure mechanisms provided numerical simulations. Improved stiffness are obtained conventional angle-ply laminates.