Composite materials are being more widely used as primary structural members for advanced naval vessels due to increased damage tolerance, stealth, range, payload, stability, and corrosion resistance, and at the same time, a reduction in lifetime costs. However, composites materials are not typically used in isolation due to their insufficient stiffness and ductility compared to metallic materials. Thus, there has been growing interests in metal and composite combined structures. However, joints in composite structures are susceptible to failure when subjected to high rate loading from an impulsive load source. This paper presents results from tensile strength testing of steel-to-composite double lap joints, comparing pseudo-static strength with dynamic strength and comparing joints that exploit perforated steel plates with those manufactured with non-perforated steel plates. Finite Element Analysis (FEA) results are compared to experimental results for both perforated and non-perforated joints.
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