材料科学
复合材料
海水
极限抗拉强度
环氧树脂
复合数
沉浸式(数学)
扫描电子显微镜
人工海水
粘弹性
数学
海洋学
地质学
纯数学
作者
Maleck Massou,N. B. Karthik Babu,Guijun Xian
出处
期刊:Structures
[Elsevier]
日期:2023-08-01
卷期号:54: 48-57
被引量:3
标识
DOI:10.1016/j.istruc.2023.05.042
摘要
This study investigates the effects of seawater immersion at different temperatures on the degradation and viscoelastic behavior of carbon fiber-reinforced polymer (CFRP) composite plates. The present study investigated the effects of seawater immersion on the degradation of mechanical properties at 20 °C, 40 °C, and 60 °C of the carbon fiber reinforced polymer (CFRP) composite plates. The specimens were prepared by hand lay-up and cured under water for 7 days before immersion in artificial seawater for 6 months. Interlaminar shear strength (ILSS), tensile strength, and dynamic mechanical analysis (DMA) tests were performed periodically over a six-month exposure period, and scanning electron microscopy (SEM) was used to characterize aging damage and fracture morphology. The long-term shear behaviour of CFRP plates in seawater has been predicted using the Arrhenius theory. The results show that immersion in seawater significantly reduces ILSS, especially at higher temperatures and longer immersion times. However, the overall tensile properties of CFRP plates were not significantly affected. Dynamic mechanical analysis (DMA) revealed a decrease in the damping (tan δ), indicating a reduction of the fiber-matrix adhesion. The long-term life prediction showed that CFRP plates subjected to seawater immersion are susceptible to degradation, with a stable retention of interlaminar shear strength at 70% for the composite laminate.
科研通智能强力驱动
Strongly Powered by AbleSci AI