The Proceedings of Mechanical Engineering Congress, Japan
Online ISSN : 2424-2667
ISSN-L : 2424-2667
2014
Session ID : J0420203
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J0420203 Identification of Damage Types in CFRP Laminates From AE Signals Detected by a New Optical Fiber Sensor
Fengming YUYoji OKABEQi WUSatoshi KOBAYASHIKazuya SAITO
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Abstract
In this research, phase-shifted FBG (PS-FBG) sensor was employed to practical AE detection for carbon fiber reinforced plastic (CFRP) composite laminate. Firstly, we evaluated the characteristics of AE signals detected by this kind of sensor. Secondly, through the experiment and simulation concerning AE source orientation, quantitative information about the standard for discriminating the AE signals due to transverse cracks and delaminations was obtained. Finally, according to the standard, we identified the occurrence of those two damage types successfully from the actually detected AE signals under three point bending and tensile tests.
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© 2014 The Japan Society of Mechanical Engineers
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