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Journal of Composite Materials
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Analysis of Acoustic Emission Signals Generated during the Fatigue Testing of GFRP

Mitsharu Shiwa

Tsurumi Research & Development Center, Japan Power Engineering and Inspection Corporation, 14-1 Benten-cho, Turumi-ku, Yokohama, 230 Japan

Steve Carpenter

University of Denver, Department of Physics, Denver, CO 80208

Teruo Kishi

Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153 Japan

The acoustic emission AE generated during the fatigue testing of GFRP have been investigated. Four separate stage of AE activity were observed during a standard test. Each stage of AE activity was characterized by the AE event and energy rate. Different AE sources have been suggested by the analysis of AE signal parameters. Three distinct fracture surfaces have been observed using a SEM. Result of this investigation strongly suggest that AE measurement can be used as an effective probe for the assessment of damage accumulation and to characterize mechanisms and types of crack growth in GFRP during fatigue loading.

Key Words: acoustic emission • GFRP • fatigue testing • fracture mechanisms

Journal of Composite Materials, Vol. 30, No. 18, 2019-2041 (1996)
DOI: 10.1177/002199839603001804
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Home page
 Journal of Reinforced Plastics and CompositesHome page
D. Tsamtsakis, M. Wevers, and P. de Meester
Acoustic Emission from CFRP Laminates during Fatigue Loading
Journal of Reinforced Plastics and Composites, September 1, 1998; 17(13): 1185 - 1201.
[Abstract]