the 89th Textile Institute World Conference

In this study, the energy absorption of each layer in the multiply system has been investigated experimentally and numerically to improve the theoretical understanding for the armour panel engineering. To achieve accurate results and to improve the calculation efficiency in FE simulation of multiply systems, different mesh sizes were used for the primary and the secondary yarns. The FE results were validated by the ballistic experimental results. The FE simulation results indicated that the energy absorption of each layer is not uniform, but increased from front to back layer. The energy absorption of front layers was constrained with more layers added in a panel, which is due to the high stress concentration and the constrained transverse deformation in front layers. Such energy absorption distribution in the multiply system suggested it is possible to obtain improvement of the ballistic performance by optimizing the construction of the armour panel.