This work investigates the quasi-static, low-cycle and fatigue behavior of hybrid glass/ultra-high modulus carbon (GC) and low modulus/ /high modulus carbon (CC) fiber composites. These pseudo-ductile unidirectional interlayer hybrids are a new type of composites whose potential is not yet fully understood, particularly under cyclic/fatigue loading. Different test methods (digital image correlation, video extensometer and thermal camera) were used to record the evolution of the strain, damage and temperature during loading. The results of quasi-static loading shown pseudo-ductile responses with multiple fractures for all the series. The CC specimens exhibited higher initial elastic modulus, ‘yield’ stress and strength, while the GC specimens showed the highest pseudo-ductile strain. Much higher capacity of CC to resist to fatigue loading was observed. In the GC specimens significant damage was accumulated during fatigue loading, when the damage evolution of multiple fractures in different layers developed to delamination between the glass and carbon layers.

这项工作研究混合玻璃/超高模量碳（GC）和低模数//高模量碳（CC）纤维复合材料的准静态，低循环和疲劳行为。这些伪延性单向夹层杂化材料是一种新型复合材料，其潜力尚未得到充分了解，尤其是在循环/疲劳载荷下。使用不同的测试方法（数字图像关联，视频引伸计和热像仪）来记录加载过程中应变，损坏和温度的变化。准静态载荷的结果表明，在所有系列中，假塑性响应都带有多个裂缝。CC样品显示出较高的初始弹性模量，“屈服”应力和强度，而GC样品显示出最高的假延性应变。观察到CC具有更高的抗疲劳负荷能力。在GC试样中，疲劳加载过程中积累了明显的损伤，这是由于不同层中的多个裂缝的损伤演变发展为玻璃层和碳层之间的分层所致。