体育器械用纤维复材设计与力学性能测试研究

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中图分类号：TQ323.5;TS952 文献标志码：A 文章编号：1001-5922（2025）10-0133-04

Research on the design and mechanical properties test of fiber composite materials for sports equipment

ZHANG Lin （Shaanxi Energy Institute，Xianyang 712OOo，Shaanxi China）

Abstract：In order to improve the thermal aging resistance offiber composite materials for sports equipment，fiber compositesamples withoutdefects and prefabricated defects were designed.The densitychange，mechanical properties，load-disturbance curveand main strain distributionoffibercomposite materials without defectsand prefabricated defects under different thermal aging environments werecompared and analyzed.The results show that when the thermal aging temperature rises to 120‰ and above，the density change rate of the fiber composite decreases sharply.With the increaseof thermalaging time，the densityof the fiber composite decreases continuously，and whenthe thermalagingtime reaches 8dor more，the decrease of the density change rate becomes smaler.After the thermal aging treatmentof the defect-free fiber composite，the bending strength and maximum loadof the fiber composite willincrease with the increase of the thermal aging temperature.Compared withnon-thermal aging specimens，thermalaging will reduce the flexural modulus and maximum loadoffiber composite specimens in both defect-free and prefabricated defect modes.In the defect-free mode，there is no obvious stress concentration in the thermal aging specimen，whilein the prefabricated defect mode，stress concentration occurs in both the non-thermal aging specimenandthethermal aging specimen，and the stress distributionuniformityof the prefabricated defect fibercomposite under the same thermal aging system is significantly lower than that of the defect-fre fiber composite.

Key Words：sports equipment;fiber composite materials; prefabricated defects;heat aging treatment;mechanical property

由玻璃纤维、碳纤维制成的纤维复合材料（纤维复材）由于具有密度轻、强度高、耐腐蚀性能好等特点，在现代体育器械、航空航天、交通运输等领域有着广泛应用。（剩余5355字）