采用四点弯曲试验,对芳伦纤维和铝核组成的复合蜂窝夹层结构进行静力和疲劳性能研究,探讨其损伤和破坏模式。考虑整体和局部参数,对复合夹层结构疲劳寿命进行评估。对最大荷载下核密度和纤维方向对复合夹层结构的影响以及其破坏过程(初始和演化过程)也进行了研究。 The four-point bending test was used to study the static and fatigue properties of composite honeycomb sandwich structure consisting of aramid fiber and aluminum core, and the damage and failure modes were also discussed. Considering overall and local parameters, the fatigue life of composite sandwich structures was evaluated. The effect of nuclear density and fiber orientation on the composite sandwich structure under maximum load, as well as its failure process (initial and evolutionary processes), have also been studied.