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Two different fabrics, an integrated hollow pile glass fabric and a nonwoven mat, inlaid into multiaxial warp knit blankets were laminated to form a sandwich structure and a hybrid structure. The impact loads and the energies of the panels corresponding to different damage characteristics under drop-weight tests were calculated. Fracture patterns and damage characteristics were observed and photographed...
This paper presents an investigation into the damage characteristics and failure strengths of composite laminates at low velocity impact tests. Three E-glass fabrics, non-crimp fabric, woven fabric, and nonwoven mat, were selected as reinforcements for the composite laminates. Impact tests were conducted using a guided drop-weight test rig in ascending energy to 24 J/layer nominal impact energy. Metallographic...
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