This study aims to enhance the compressive properties of sandwich composites containing extruded polystyrene (XPS) foam core and glass or carbon face materials by using carbon/vinyl ester and glass/vinyl ester composite Z-pins. The composite pins were inserted into foam cores at two different densities (15 and 30 mm). Compression test results showed that compressive strength, modulus and loads of the sandwich composites significantly increased after using composite Z-pins. Sandwich composites with 15 mm pin densities exhibited higher compressive properties than that of 30 mm pin densities. The pin type played a critical role whilst carbon pin reinforced sandwich composites had higher compressive properties compared to glass pin reinforced sandwich composites. Finite element analysis (FE) using Abaqus software has been established in this study to verify the experimental results. Experimental and numerical results based on the capabilities of the sandwich composites to capture the mechanical behaviour and the damage failure modes were conducted and showed a good agreement between them.

这项研究旨在通过使用碳/乙烯基酯和玻璃/乙烯基酯复合Z形针增强包含挤出聚苯乙烯（XPS）泡沫芯和玻璃或碳面材料的三明治复合材料的压缩性能。将复合材料销钉以两种不同的密度（15和30 mm）插入泡沫芯中。压缩测试结果表明，使用复合Z形销后，三明治复合材料的抗压强度，模量和载荷显着增加。销钉密度为15毫米的三明治复合材料的压缩性能高于销钉密度为30毫米的三明治复合材料。销钉类型起着至关重要的作用，而与玻璃销钉增强的夹心复合材料相比，碳销钉增强的夹心复合材料具有更高的压缩性能。本研究建立了使用Abaqus软件的有限元分析（FE），以验证实验结果。基于三明治复合材料捕获力学行为和破坏破坏模式的能力进行了实验和数值结果，表明它们之间有很好的一致性。