负泊桑比石墨纤维/环氧树脂复合材料的断裂特性
FRACTURE CHARACTERISTIC OF GRAPHITE/EPOXY LIMINATES WITH NEGATIVE POISSON’S RATIO
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摘要: 本文研究了具有平面负泊桑比石墨纤维/环氧树脂非平衡层合复合材料的断裂问题.与具有正泊桑比的常规平衡复合材料相比,这种材秆具有很高的断裂韧性.它抗裂纹扩展能力强,缺口断裂强度高,缺口敏感性低,有重要的工程意义.Abstract: A study was made to fracture characteristic of Graphite/Epoxy unbalanced liminates with inplane negative Poisson's ratio.These liminates have higher fracture toughness and notch fracture strength.lower notch sensitivity as compared with the balanced liminates.