Abstract
Because of its outstanding mechanical properties, carbon fiber reinforced plastic (CFRP) is widely used in structures bearing high-impact loads. In this study, based on the bridging model, the dynamic constitutive equations and yield criteria concerning the strain rate effect of composite material are used to analyze the optimal design and compressive strength of a CFRP laminate under high-impact compressive loads. The mechanical properties of laminates under different strain rates were calculated and compared with experimental results to verify the viability of improving the bridging model, where our theoretical results agreed with them. Structural design schemes based on this were analyzed and a ply scheme satisfying our requirements selected. Using this scheme, samples were manufactured and subjected to quasi-static and medium strain rate compressive tests, and the results agreed with theoretical calculations. This study can help design optimal CFRP structures for penetrator case under high-impact compressive loads and predict their properties.
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