The aim of the study is to present a complex phenomenon of damage in thin-walled composite structures with an top-hat cross-section subjected to axial compression. Actual structures were prepared using the auto-clave technique (CFRP composite). Research was conducted in a full range of load – until construction damage. In the case of experimental testing both post-critical equilibrium paths and acoustic emission signals were recorded. Numerical simulations were realised using progressive fracture analysis (PFA) and cohesive zone model (CZM). Such approach allowed one to assess the loss of load capacity along with demonstrating the delamination phenomenon. A measurable effect of the experimental-numerical research was presenting the influence of axial compression on post-critical behaviour of the structure and damage phases.

该研究的目的是提出一种带有顶帽横截面的薄壁复合结构在轴向压缩下的复杂破坏现象。使用高压釜技术（CFRP复合材料）准备了实际结构。研究在全范围的载荷下进行-直到建筑损坏。在实验测试的情况下，记录了临界后平衡路径和声发射信号。使用渐进式裂缝分析（PFA）和粘性区模型（CZM）进行了数值模拟。这种方法使人们能够评估负载能力的损失，并展示分层现象。实验数值研究的可测量效果是提出了轴向压缩对结构的临界后行为和破坏阶段的影响。