Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 141, Issue -, Pages 130-136Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2017.01.018
Keywords
Fibre reinforced plastics; Fatigue strength; Very high cycle fatigue; Ultrasonic fatigue testing; Composites
Categories
Funding
- Chang Jiang Scholars Program and National Science Foundation of China [21273269, 21473238, 51675095, 11572085]
- Fok Ying-Tong Education Foundation [141070]
- Shu-Guang project [14SG31]
- Shanghai Municipal Education Commission
- Shanghai Education Development Foundation
- Fundamental Research Funds for the Central Universities of China
- DHU Distinguished Young Professor Program
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At present the fatigue behaviour of glass fibre reinforced plastics (GFRP) and the corresponding failure mechanisms are rarely investigated in the very high cycle fatigue (VHCF) regime. This is due to a lack of testing equipment fitted to the specific properties of fibre reinforced plastics. To obtain comprehensive knowledge about the fatigue behaviour of GFRP in the VHCF regime, ultrasonic fatigue testing equipment has been applied for cyclic tension testing of GFRP for the first time. Ultrasonic fatigue testing (UFT) reduces the testing time in comparison to conventional techniques by a factor of 100. UFT is used to determine the fatigue strength of GFRP in the range of 10(6) - 10(9) cycles. Data obtained by UFT is compared to fatigue data generated using a conventional servo -hydraulic device at low frequencies of 10 Hz. Both data sets agree very well which indicates the suitability of UFT for this material. (C) 2017 Elsevier Ltd. All rights reserved.
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