ABSTRACT Electrical and shear behaviour of electrically conductive glass fibre/epoxy composites is studied under interlaminar shear loading. A well-connected network is developed by dispersing carbon nanotubes in the matrix and reinforcing micro carbon fibres between the glass laminates. The effect of carbon fibre length and their densities on the electrical and shear behaviour of the composite is investigated. Although interlaminar shear strength was increased by 20% with addition of carbon fibres, they failed to bridge the delamination between the laminates. For all composite types, there is no change in resistance during elastic deformation due to the formation of new contacts between the CNTs. However, during the non-linear deformation, the carbon fibres debonding and micro-crack coalescence increased resistance steadily for all cases. The composites of shorter carbon fibres showed a higher slope in the resistance change and a maximum peak resistance change compared to that of longer carbon fibres.

中文翻译：

---

导电玻璃纤维/环氧树脂复合材料的电和剪切本构响应

摘要研究了在层间剪切载荷下导电玻璃纤维/环氧树脂复合材料的电气和剪切行为。通过将碳纳米管分散在基体中并增强玻璃层压板之间的微碳纤维，可以形成连接良好的网络。研究了碳纤维长度及其密度对复合材料的电气和剪切行为的影响。尽管添加碳纤维后层间剪切强度增加了 20%，但它们未能弥合层压板之间的分层。对于所有复合材料类型，由于碳纳米管之间形成新的接触，在弹性变形期间电阻没有变化。然而，在非线性变形过程中，碳纤维脱粘和微裂纹聚结在所有情况下都稳定地增加了阻力。