Application of acoustic emission in drilling of composite laminates

被引：31
|
作者：
Ravishankar, SR [1 ]
Murthy, CRL
机构：
[1] Brunel Univ, Brunel Ctr Mfg Metrol, Uxbridge UB8 3PH, Middx, England
[2] Indian Inst Sci, Dept Aerosp Engn, Bangalore 560012, Karnataka, India
来源：
NDT & E INTERNATIONAL | 2000年 / 33卷 / 06期
关键词：
drilling; composites; acoustic emission; GFRP laminates;
D O I：
10.1016/S0963-8695(00)00014-1
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Acoustic emission (AE) technique was used to characterise drilling of composite laminates. Uni-directional glass fibre reinforced plastic (GFRP) laminates consisting of 12-layers and 16-layers (0/90)(s) were drilled using a twist drill and the generated AE was monitored. Results of the investigations reveal that the complexion of the acoustic emission root mean square (AE-RMS) signal response changes from the drill entry to the exit thus giving an overall understanding about the different events that take place during drilling. Also, AE-RMS signal level increases with an increase in the applied thrust and further reveals that it is possible to evaluate the drill induced damages in composites through AE signal characterisation. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：429 / 435
页数：7
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