【摘 要】
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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 γ-ray irradiation on the fatigue strength,thermal conductivities and thermal stabili
【机 构】
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School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, Chin
论文部分内容阅读
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 γ-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 γ-ray irradiation could probably result in the degradation of epoxy resins,but hardly damage to the glass fibres.And the γ-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 γ-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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