Journal
ACTA METALLURGICA SINICA-ENGLISH LETTERS
Volume 31, Issue 1, Pages 105-112Publisher
CHINESE ACAD SCIENCES, INST METAL RESEARCH
DOI: 10.1007/s40195-017-0692-2
Keywords
Epoxy resins composites; Glass fibres; Fatigue strength; gamma-Ray irradiation; Thermal stabilities
Categories
Funding
- National Natural Science Foundation of China [51605025]
- Major Program of National Key Research and Development Program of China [2016YFC0802905]
- Fundamental Research Funds for the Central Universities [FRF-GF-17-B19]
- BEPC great reconstruction project
- Knowledge Innovation Fund of the Chinese Academy of Sciences [U-603, U-34]
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Glass fibres/epoxy resins composites have been performed as ideal materials to make support instruments for high-energy and nuclear physics experiments. The effects of the gamma-ray irradiation on the fatigue strength, thermal conductivities and thermal stabilities of the glass fibres/epoxy resins composites were investigated. And a two-parameter fatigue life model was established to predict the fatigue life of the composites. Results revealed that the gamma-ray irradiation could probably result in the degradation of epoxy resins, but hardly damage to the glass fibres. And the gamma-ray irradiation treatment could significantly affect the fatigue strength of the composites at a low-cycle fatigue stage, but seldom influence at a high-cycle fatigue stage. Furthermore, the fabricated glass fibres/epoxy resins composites after the gamma-ray irradiation still presented excellent fatigue strength, ideal thermal conductivities, remarkable dimensional and thermal stabilities, which can meet the actual requirements of normal operation for supporting instruments under high-energy and nuclear physics experiments.
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