| 声发射技术在三维编织复合材料测试中的应用研究 |
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| 引用本文： | 万振凯. 声发射技术在三维编织复合材料测试中的应用研究[J]. 无损检测, 2003, 25(2): 72-75 |
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| 作者姓名： | 万振凯 |
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| 作者单位： | 天津工业大学,天津,300160 |
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| 基金项目： | 天津市自然基金(013601211) |
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| 摘 要： | 论述了声发射技术在三维编织复合材料拉伸过程损伤测试中的应用，结果表明，通过采集声发射参数可以描述复合材料在载荷情况下的内部变形的损伤机制。系统采用小波分析方法对声发射信号进行噪声处理，用频谱图描述复合材料的内部损伤变形特征，为复合材料的力学性能分析和材料复合工艺的改善提供理论基础。
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| 关 键 词： | 三维编织复合材料 声发射检验 频谱分析 噪声处理 |
| 文章编号： | 1000-6656(2003)02-0072-04 |
| 修稿时间： | 2001-11-20 |
RESEARCH ON THE APPLICATION OF ACOUSTIC EMISSION TECHNIQUE TO TESTING THREE-DIMENSION COMPOSITE MATERIAL |
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| WAN Zhen-kai. RESEARCH ON THE APPLICATION OF ACOUSTIC EMISSION TECHNIQUE TO TESTING THREE-DIMENSION COMPOSITE MATERIAL[J]. Nondestructive Testing, 2003, 25(2): 72-75 |
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| Authors: | WAN Zhen-kai |
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| Abstract: | The application of acoustic emission technique to testing the three-dimension composite material ten-sioned was discussed. Result showed that the inner damage mechanism of composite material under tension would be presented through collecting acoustic emission signals. The noise was eliminated by wavelet analysis and composite material inner damage characteristic was described by frequency spectrum. It would lay foundation for analyzing the mechanical properties of composite material and improving compound process. |
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| Keywords: | Acoustic emission testing Composite material Frequency spectrum analysis Noise processing |
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