期刊
COMPOSITES PART B-ENGINEERING
卷 75, 期 -, 页码 336-344出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2015.01.044
关键词
Carbon fibre; Statistical properties/methods; Acoustic emission; Structural health monitoring
资金
- Iraqi Ministry of Higher Education and Scientific Research
In composite materials, accurate characterisation of damage using NDT techniques is vital. Techniques which are well developed in homogeneous materials do not translate easily to composites due to their complex and anisotropic properties. This is especially true in acoustic emission (AE) where propagation behaviour significantly affects the signal data. This paper describes a novel solution to enable AE parameters to be corrected to account for the material properties and the geometry of the structure. The Parameter Correction Technique (PCT) derives an empirical relationship between signal parameters and varying source amplitude from a number of locations, across a structure. This method does not require knowledge of the sensor location or wave velocity. A five-step description of the process is provided and practical results from an initial trial are presented. Results from the initial trial demonstrate a considerable improvement over the conventional parameters. (C) 2015 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据