| 內容摘要 | This study reports the fracture evolution of thick cross-plied composites under static compression loading. The prepreg employed was TC-35 carbon fiber/EHM-63 epoxy, and the composite was laminated using a pressure rolling machine. Six types of symmetric stacking were adopted: [0m/902m/0m]n (m¼40, 20, 10, 5, 2, 1 and n¼1, 2, 4, 8, 20, 40, respectively). All specimens contain a total of 160 layers, and the numbers of 0 and 90 layers are both 80. The nominal thickness specimen is 24 mm. For different pairs of m and n, the number of 0 /90 interfaces varies. To apply the compressive load, an end-supported, end-loaded fixture was used. The growth of cracks was monitored and recorded in real-time by picture and video cameras. The relationships among the stacking sequence, the support conditions, the resulting properties, the induced failure modes, and the fracture evolution are discussed. |