| 复合材料韧性评定的新方法关于损伤阻抗性能的研究 |
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| 引用本文： | 杨旭,沈真,燕瑛,刘兵山.复合材料韧性评定的新方法关于损伤阻抗性能的研究[J].中国航空学报,2003,16(2):73-79. |
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| 作者姓名： | 杨旭 沈真 燕瑛 刘兵山 |
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| 作者单位： | Shenyang Aircraft Design Research Institute，Aircraft Strength Research Institute of China，Institute of Aircraft Design and Research，Beijing University of Aeronutics and Astronautics，Institute of Aircraft Design and Research，Beijing University of Aeronutics and Astronautics POBox725 Shenyang110035，Chian，Institute of Aircraft Design and Research，Beijing University of Aeronutics and Astronautics，Beijing 100083，China，POBox 86，Xi′an710065，China，Beijing 100083，China，Beijing 100083，China |
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| 基金项目： | Key L aboratory Foundation of National Defence( 0 0 JS49.3 .1.HK5 3 0 1)，N ational Natural Science Foundation( 5 0 0 73 0 0 2) |
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| 摘 要： | 从复合材料结构设计的角度，指出了目前在韧性复合材料评定技术中存在的问题，特别是指出了用冲击后压缩强度值作为判别复合材料韧性的缺点，提出了应采用损伤阻抗和损伤容限共同评定复合材料韧性的观点。对7种不同韧性的复合材料进行了冲击与静压痕等试验，在对试验数据分析的基础上，确定了对损伤阻抗最敏感的损伤参数，提出了描述损伤阻抗的物理量和测试方法。
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| 关 键 词： | 复合材料 韧性 损伤阻抗 损伤参数 冲击凹坑 设计许用值 飞行器 |
New Methodology for Evaluating Toughness of Composite Laminates-Investigation of Damage Resistance |
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| YANG Xu,SHEN Zhen,YAN Ying,LIU Bing-shan.New Methodology for Evaluating Toughness of Composite Laminates-Investigation of Damage Resistance[J].Chinese Journal of Aeronautics,2003,16(2):73-79. |
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| Authors: | YANG Xu SHEN Zhen YAN Ying LIU Bing-shan |
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| Abstract: | The existing problems in toughened resin evaluation technology, particularly the disadvantage of the toughened resin identification method by CAI, is pointed out based on the point of view of composite structure design. It is proposed to evaluate the toughness of composites by both damage resistance and damage tolerance. Seven different toughness composites are investigated by impact and quasi\|static indentation tests. Based on experimental data analysis, the parameter that is most sensitive to the damage resistance is determined as the damage parameter. The parameter to evaluate the damage resistance and its measuring method are proposed. |
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| Keywords: | composite materials design limit damage resistance damage parameter impact dent |
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