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首页> 外文会议>International Conference on Eco-Dyeing, Finishing and Green Chemistry >Projectile Impact Behavior of Z-fiber Reinforced Laminar Composites
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Projectile Impact Behavior of Z-fiber Reinforced Laminar Composites

机译：Z-纤维增强层复合材料的射弹冲击性能

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The bending toughness, strength retention, resistance to damage and bending stiffness of glass fiber mat, laminar composites under high strain rate impact loading conditions was studied. One of the main disadvantages of laminar composite materials is their poor interlaminar shear strength. Recent work has demonstrated a method of Z-direction reinforcement of these composites using electrostatic flocking techniques improve delamination resistance and fracture toughness without degrading the composite's tensile strength or other in-plane properties when loaded quasistatically. The Z-direction reinforcement is accomplished by electrostatically flocking short fibers perpendicular to and between the composite ply layers. In this study, composite samples were prepared using the flocking method in two fabrication modes by the; so-called Z-Axis "wet" and ZAxis "dry" procedures. In this work, Z-direction reinforced composite panels (including a non reinforced control) that were previously projectile impact damaged were tested using established mechanical testing procedures. Damage areas were quantified and compared using image processing techniques. Three point bending tests were also conducted on these projectile impact damaged panels to determine and compare their bending toughness, strength retention and modulus. The results show that Z-Axis reinforcement by the flocking technique improves the overall mechanical strength and stiffness properties of glass fiber mat laminar composites. For example, ZAxis reinforced projectile damaged and not damaged glass fiber mat composite laminates are found to have flexural strengths 9% to 15% higher and a flexural modulus (stiffness) 22% to 26% higher than comparable (not Z-Axis flock reinforced) glass fiber mat samples.
机译：研究了玻璃纤维垫的弯曲韧性，强度保持，抗损坏和弯曲刚度，在高应变率冲击负载率下的层状复合材料。层状复合材料的主要缺点之一是它们差的层间剪切强度。最近的工作已经证明了一种使用静电植绒技术通过静电植绒技术进行了Z方向加固的方法，提高了分层电阻和断裂韧性，而不会使复合材料的拉伸强度或在Quasisization加载时的抗拉强度或其他在线性质。 Z方向加固是通过垂直于复合层层和复合层之间的短纤维植入的短纤维来实现的。在该研究中，使用两种制造模式的植绒法制备复合样品;所谓的z轴“湿”和zaxis“干”程序。在这项工作中，使用建立的机械测试程序测试了先前射击损坏的Z方向增强复合板（包括非增强控制）。量化损坏区域并使用图像处理技术进行比较。在这些射弹冲击损坏的面板上也进行了三点弯曲试验，以确定和比较它们的弯曲韧性，强度保持和模量。结果表明，植绒技术的Z轴增强提高了玻璃纤维垫层复合材料的整体机械强度和刚度特性。例如，Zaxis加强射弹损坏且未损坏的玻璃纤维垫复合层压板具有9％至15％的弯曲强度，弯曲模量（刚度）比可比相当的高度高22％至26％（不是Z轴绒加筋）玻璃纤维垫样品。

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