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论文类型：会议论文

发表时间：2012-11-06

收录刊物：EI

卷号：1

页面范围：474-479

摘要：Interfacial toughness, critical bending load and energy absorption of carbon-fiber/aluminum-foam sandwich beams with low-density short aramid-fiber interfacial toughening are investigated in this study. Short aramid fibers of different lengths and densities were inserted at the interface between carbon-fiber face sheets and aluminum-foam core during the sandwich fabrication process, to improve the interfacial bonding of the sandwich structures. With less than 1 wt% of short aramid fibers, over 80% improvement in the interfacial toughness, over 30% improvement in the peak bending load and over 80% in the energy absorption were observed, showing the interleave using low-density short aramid fibers is effective. The interfacial strengthening, toughening, and underlying mechanisms were discussed and analyzed, together with the observations from scanning electron microscopy. Copyright ? (2012) by Asian-Australasian Association for Composite Materials (AACM).