AE Characteristics of Damage Behavior in PE/PE Composite Laminates

摘要：

An approach of wavelet multi-resolution and time-frequency-energy analysis is presented to identify characteristics of acoustic emission (AE) signals generated by different damage behaviors. Technique of wavelet time frequency-energy analysis is then employed to identify the characteristics of the reconstructed signal. Different stacking sequences, 0°, +45°/-45°, 90° and pure resin are used to trigger different damage mechanism during testing. Results show that different types of damage generate AE signals varying in amplitude, duration time and frequency content. Typical signals and characteristics are presented in this paper. As a result, the approach can be effectively utilized for identifying damage mechanism in PE/PE composite laminate.4

关键词： PE/PE composite laminate damage mechanism acoustic emission wavelet multi-resolution timefrequency-energy analysis

作者: ZHANG Tonghua ZHANG Huiping WANG Yisha YAN Xiong

作者单位: The Key Lab of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University Shanghai 201620, P. R. China

会议类型: 国际会议

会议名称: 2007年先进纤维与聚合物国际会议

会议地点: 上海

会议语种:英文

页码: 279-282

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）