Low-velocity impact on square sandwich plates with fibre-metal laminate face-sheets: Analytical and numerical research

The low-velocity impact via a heavy mass on clamped square sandwich plates (SSP) composed of metal foam core and fibre-metal laminate (FML) face-sheets is studied by analytical and numerical methods. Low-velocity impact (LVI) is formulated on square FML sandwich plates based on modified rigid-plastic material approximation (RPMA). Numerical simulations are conducted, and then compared with analytical results reasonably. Influences of the material parameters and impact location on the dynamic behaviors are discussed in detail. This work provides an efficient and simply analytical method to predict low-velocity impact for square FML sandwich plates.

Automated summary

This study investigates the low-velocity impact on clamped square sandwich plates composed of a metal foam core and fibre-metal laminate face-sheets using analytical and numerical methods. The impact behavior is formulated based on a modified rigid-plastic material approximation, with numerical simulations conducted and compared with analytical results. The influences of material parameters and impact location on dynamic behaviors are discussed in detail, providing an efficient and simple analytical method for predicting low-velocity impact on square FML sandwich plates.