应用数学和力学2026，Vol.47Issue(2)：136-144,9.DOI:10.21656/1000-0887.450337
强制风冷对玻璃纤维/乙烯树脂复合材料高周疲劳性能的影响
Effects of Forced Cooling on High Cycle Fatigue Properties of Glass Fiber-Vinyl Resin Composites
摘要
Abstract
To study the effects of forced air cooling on the fatigue performance of glass fiber-vinyl resin com-posites fabricated through unidirectional pultrusion,a quasi-static tensile test was carried out to obtain the ulti-mate load of failure and analyze its failure modes.On this basis,a high-frequency fatigue testing device with forced air cooling and an infrared camera to monitor the temperature change were used to study the pull-pull fa-tigue behavior of the composite with or without forced air cooling,and the effects of the forced air cooling on the fatigue life of the specimen were compared and analyzed.The test results show that,under a stress level within 155～240 MPa,the surface temperature of the specimen without forced air cooling measures rises rapid-ly,leading to the failure of the specimen,while under a stress level of 155 MPa,the temperature rises slowly first and then stabilizes.After forced air cooling,the surface temperature of the specimens will decrease,and the fatigue life will increase significantly,and the stress level will stay below 140MPa.The fatigue life of the specimens is not significantly influenced by forced air cooling measures.Furthermore,the fatigue fracture of the sample is mainly based on the matrix cracking.The proposed experimental method provides reference and guidance for fatigue experimental design of fiber reinforced composites.关键词
玻璃纤维增强复合材料/S-N曲线/红外监测/刚度退化Key words
GFRP/S-N curve/infrared monitoring/stiffness degradation分类
数理科学引用本文复制引用
赵邦耀,王垠,胡义锋,魏雄,李伟,胡煜,王建强,张志家,张钱城..强制风冷对玻璃纤维/乙烯树脂复合材料高周疲劳性能的影响[J].应用数学和力学,2026,47(2):136-144,9.基金项目
国家自然科学基金(面上项目)(12072250) （面上项目）
中国水利水电建设工程咨询西北有限公司科研基金项目(202401110) （202401110）
