DAMAGE CHARACTERISTICS OF CARBON FIBER COMPOSITESBASED ON ACOUSTIC EMISSION TECHNOLOGY

Abstract

Abstract: Acoustic emission (AE) signal acquisition of carbon fiber composites in tensile fracture test is completed by using the self-designed AE detection system. Wavelet analysis, spectrum analysis and characteristic parameter analysis are used to analyze the two sets of AE signals obtained in the test. The relationship between the failure characteristic frequency and the damage mode of carbon fibre composites is established, and the main variation rule of acoustic emission signals in the damage process of carbon fibre composites is found.

Key words: carbon fiber composites, acoustic emission, wavelet analysis, spectrum analysis

CLC Number:

TB332

MENG Chao, ZHANG Xi, HE Zhi-xiang, PENG Wei-dong. DAMAGE CHARACTERISTICS OF CARBON FIBER COMPOSITESBASED ON ACOUSTIC EMISSION TECHNOLOGY[J]. Fiber Reinforced Plastics/Composites, 2019, 0(10): 5-9.

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