Impact damage to 3D woven CFRP composites plates
Impact damage to 3D woven CFRP composites plates
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发表时间：
2009-07
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通讯作者：
Z. Zumpano;M. Sutcliffe;C. Aceves;W. Stronge;M. Fox
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作者：
Z. Zumpano;M. Sutcliffe;C. Aceves;W. Stronge;M. Fox
玻璃-碳混合编织复合材料和两个CFRP 3D编织复合材料与正交编织和层到层编织的半球形尖端的冲击器的影响，使用气枪在能量高达60 J的损伤面积，通过超声波C-扫描测量，大致线性增加与冲击能量，而峰值接触力增加大致作为冲击能量的平方根。切片用于检查损坏细节。虽然观察到一些大的分层，但有相当大的区域没有较大的裂纹，但在C扫描下显示出损坏，可能是由于微裂纹。
A glass-carbon hybrid braided composite and two CFRP 3D woven composites with orthogonal weave and a layer-to-layer weave are impacted with hemispherically-tipped impactors, using a gas gun at energies up to 60 J. The damage area, as measured by ultrasonic C-scanning, increases roughly linearly with impact energy, while the peak contact force increases roughly as the square root of the impact energy. Sectioning is used to examine damage details. Although some large delaminations are observed, there are significant areas free of larger cracks, which nevertheless show damage under C-scanning, presumably due to microcracking.