Abstract
Low-velocity impact of slender multilayer sandwich beams, which formed by fiber-metal laminate (FML) face-sheets and metal foam cores, is theoretically and numerically investigated. Based on the modified rigid plastic model, the analytical solution for dynamic response of the slender multilayer FML foam sandwich beam under low-velocity impact is obtained. Numerical calculations are conducted, the analytical solutions capture numerical results. Effects of the strength ratio of composite and metal layers, core strength, and metal volume fraction are discussed for impact resistance of multilayer FML foam sandwich beams. Finally, the optimal design map by minimizing the mass of multilayer FML foam sandwich beam is conducted.
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