| 复合材料层板冲击损伤特性及冲击后压缩强度研究 |
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| 引用本文： | 林智育,许希武,朱伟垚.复合材料层板冲击损伤特性及冲击后压缩强度研究[J].航空材料学报,2011,31(1). |
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| 作者姓名： | 林智育 许希武 朱伟垚 |
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| 作者单位： | 南京航空航天大学,航空宇航学院结构强度研究所,飞行器结构力学与控制教育部重点实验室,南京,210016 |
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| 基金项目： | 国家自然科学基金(10672075); 南京航空航天大学基本科研业务费专项科研项目资助,(NS2010011) |
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| 摘 要： | 对两种材料体系(T300/QY8911和T300/5405)/铺层的复合材料层板进行三种支持条件(冲击点无支持、梁凸缘或长桁凸缘支持和肋凸缘支持)、六种冲击能量等级的冲击损伤特性及冲击后压缩强度试验研究。讨论了冲击能量、支持条件等与冲击损伤特性和剩余压缩强度的关系,研究结果表明,冲击表面凹坑深度和冲击损伤面积可用于表征复合材料冲击损伤,而基体裂纹长度不可以用于表征冲击损伤。且随着冲击点背面支持刚度的增加,冲击所造成的损伤随之减小。随着冲击能量的增加,冲击后压缩强度随之减小。在相同的冲击能量作用下,随着冲击点背面支持刚度的增加,冲击后压缩强度也随之增加。
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| 关 键 词： | 复合材料层板 冲击损伤 冲击损伤特性 剩余压缩强度 |
Experimental Study on Impact Damage Characteristics and Residual Compressive Strength of Composite Laminates |
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| LIN Zhi-yu,XU Xi-wu,ZHU Wei-yao.Experimental Study on Impact Damage Characteristics and Residual Compressive Strength of Composite Laminates[J].Journal of Aeronautical Materials,2011,31(1). |
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| Authors: | LIN Zhi-yu XU Xi-wu ZHU Wei-yao |
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| Institution: | LIN Zhi-yu,XU Xi-wu,ZHU Wei-yao(MOE Key Laboratory of Structural Mechanics and Control for aircraft,Research Institute of Structures and Strength,College of Aerospace Engineering,Nanjing University of Aeronautics & Astronautics,Nanjing 210016,China) |
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| Abstract: | Composite laminates of two typical systems(T300/QY8911 and T300/5405) and layers were conducted under three kinds of support conditions(no support,rib flange support and beam or stringer flange support) and six impact energy levels,to study the impact damage characteristics and residual compressive strength.The relationship between impact energy,support conditions etc.and impact damage characteristics were studied.The dent depth and damage area can be used to characterize the impact damage;the resin crack l... |
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| Keywords: | composite laminates impact damage impact damage characteristics residual compressive strength |
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