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结合斜缝合增强和Z-pin增强2种方法,采用混合增强方法制备泡沫夹层结构,并对这种结构材料的平压、平拉和剪切力学性能进行了实验研究,考察了不同混合比例对其力学性能和破坏模式的影响。结果表明,夹层结构中,随着Z-pin比例的增加,压缩强度和模量增大;随着斜缝合比例的增加,拉伸强度、模量以及剪切强度增大;但不同混合增强试样的剪切模量差别不大。
Combined with the two methods of oblique suture reinforcement and Z-pin reinforcement, the foam sandwich structure was prepared by the hybrid reinforcement method, and the flat pressure, flat tension and shear mechanical properties of the structural material were investigated experimentally. The effects of different mixing ratio Its mechanical properties and the impact of destruction mode. The results show that the compressive strength and modulus increase with the increase of the Z-pin ratio in the sandwich structure. The tensile strength, modulus and shear strength increase with the increase of the ratio of skew suture. However, The difference between the shear modulus is not big.