Mechanical Behavior and Design of FRP Structural Members at High and Low Service Temperatures
Mechanical Behavior and Design of FRP Structural Members at High and Low Service Temperatures
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DOI：
10.1061/(asce)cc.1943-5614.0000676
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发表时间：
2016-10
影响因子：
4.6
通讯作者：
P. Feng;Jie Wang;Ye Tian;David Loughery;Yi Wang
中科院分区：
文献类型：
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作者：
P. Feng;Jie Wang;Ye Tian;David Loughery;Yi Wang
摘要目前的纤维增强聚合物（FRP）结构设计手册只允许有限的FRP在高温环境中的应用。然而，FRP复合材料在高使用温度下的剩余力学性能应予以考虑。本文介绍了FRP试样在25至120°C温度下的弯曲试验结果和FRP构件在−40至90°C温度下的压缩试验结果。虽然机械性能随着温度的升高而降低，但它们在高工作温度下保持残余强度和刚度。零下温度对力学性能的影响可以忽略不计。此外，在每12小时在45 ° C和135°C之间交替的高温-常温循环之后，对试样的弯曲性能和部件的压缩性能进行了实验研究。结果表明，反复高温-常温循环对合金的力学性能影响不大。那个...
AbstractCurrent design manuals for fiber-reinforced polymer (FRP) structures only allow limited application of FRP in high-temperature environments. However, the residual mechanical properties of FRP composites at high service temperatures should be considered. This paper presents the results of bending tests on FRP coupon specimens at temperatures from 25 to 120°C and of compression tests on FRP components at temperatures from −40 to 90°C. Although the mechanical properties decrease with increasing temperature, they retain residual strength and stiffness at high service temperatures. The influence of subzero temperatures on the mechanical properties is negligible. Additionally, the flexural properties of the coupon specimens and the compressive properties of the components were experimentally investigated after high-normal temperature cycles, which alternated between 45 and 135°C every 12 h. The results show that repeated high-normal temperature cycles have little effect on the mechanical properties. The...