中国塑料

中国塑料 ›› 2013, Vol. 27 ›› Issue (01): 79-86.DOI: 10.19491/j.issn.1001-9278.2013.01.016

• 加工与应用 • 上一篇    下一篇

PE-UHMW/PE-LD层合板损伤声发射信号频率特征研究

王旭,毕松梅*   

  1. 纺织面料安徽省高校重点实验室;安徽工程大学纺织服装学院，安徽芜湖241000


  • 收稿日期:2012-08-16 修回日期:2012-10-09 出版日期:2013-01-26 发布日期:2020-11-12

Frequency Characteristics of AE Signal during Damage Process of PE-UHMW/PE-LD Laminates

WANG Xu，BI Songmei*   

  1. Anhui Provincial Laboratory of Textile Fabric, College of Textiles and Clothing, Anhui Polytechnic University, Wuhu 241000,China
  • Received:2012-08-16 Revised:2012-10-09 Online:2013-01-26 Published:2020-11-12

摘要： 为揭示聚乙烯自增强复合材料(PE-UHMW/PE-LD)不同损伤模式的声发射信号频率特征，通过对基体、单纤维复合材料、90°单向板+45°/-45°层合板的拉伸破坏，分别诱导产生基体损伤、纤维断裂、纤维/基体界面损伤和层间损伤的AE信号，并和非损伤AE信号(环境噪声、断铅模拟)频率特征进行对比。实验结果表明，非损伤AE信号和损伤AE信号之间均具有不同的峰值频率和频率分布特征。

关键词: 聚乙烯自增强复合材料, 声发射, 频率, 损伤

Abstract: In order to reveal frequency characteristics of acoustic emission (AE) signal from different damage modes of self-reinforced polyethylene(PEA composites (PE-UHMW/PE-LDP，damage (matrix damage, fiber breakage，interface damage，and delaminating)and non-damage (environment noise and pencil lead break test) signals were extracted from PE-LD resin，filament composite, 90° laminate, and +45°/-45°laminates.The difference between damage and non-damage AE signals in was identified. These results could he used to investigate damage mechanisms of self-reinforced PE composites.

Key words: polyethylene self-reinforced composite, acoustic emission;frequency;damage

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