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Response and failure modes of biaxial warp-knitted flexible composite subject to low-velocity impact
Journal of Industrial Textiles ( IF 3.2 ) Pub Date : 2021-05-06 , DOI: 10.1177/15280837211015477
Ziyu Zhao 1 , Tianming Liu 2 , Pibo Ma 1
Affiliation  

In this paper, biaxial warp-knitted fabrics were produced with different high tenacity polyester linear density and inserted yarns density. The low-velocity impact property of flexible composites made of polyurethane as matrix and biaxial warp-knitted fabric as reinforcement has been investigated. The effect of impactor shape and initial impact energy on the impact response of flexible composite is tested. The results show that the initial impact energy have minor effect on the impact response of the biaxial warp-knitted flexible composites. The impact resistance of flexible composite specimen increases with the increase of high tenacity polyester linear density and inserted yarns density. The damage morphology of flexible composite materials is completely different under different impactor shapes. The findings have theoretical and practical significance for the applications of biaxial warp-knitted flexible composite.



中文翻译:

低速冲击下双轴经编柔性复合材料的响应和破坏模式

在本文中,生产了具有不同高强度聚酯线密度和插入纱线密度的双轴经编织物。研究了以聚氨酯为基体,双轴经编织物为增强材料的柔性复合材料的低速冲击性能。测试了冲击器形状和初始冲击能量对柔性复合材料冲击响应的影响。结果表明,初始冲击能对双轴经编柔性复合材料的冲击响应影响较小。柔性复合材料试样的抗冲击性随着高强度聚酯线密度和插入纱线密度的增加而增加。在不同的冲击器形状下,柔性复合材料的损伤形态完全不同。

更新日期:2021-05-06
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