• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>SP-230; International Symposium on Fiber-Reinforced Polymer(FRP) Reinforcement for Concrete Structures; 20051106-09; Kansas City,MI(US) >Durability Assessment of Combined Environmental Exposure and Bending
【24h】

Durability Assessment of Combined Environmental Exposure and Bending

机译：综合环境暴露和弯曲的耐久性评估

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Although fiber reinforced polymer (FRP) composites are increasingly being used in civil infrastructure applications, there is still a lack of well documented data and understanding regarding their long-term performance especially under combined exposure to environmental conditions and sustained load. This paper presents the results of an investigation into synergistic effects of hygrothermal exposure and sustained strain on pultruded E-glass/vinylester composites. It is seen that effects of increasing strain levels can be significant and can lead to changes in damage mechanisms, especially in conjunction with moisture uptake. High strains in combination with moderate to elevated temperatures resulted in substantially more catastrophic failure than elevated temperatures in combination with lower strains. These effects were noted in tension and short-beam-shear modes, and overall deterioration was corroborated by moisture uptake, Dynamic Mechanical Thermal Analysis (DMTA) and FourierTransform Infrared Spectroscopy (FTIR) investigations.
机译：尽管纤维增强聚合物（FRP）复合材料正越来越多地用于民用基础设施应用中，但仍缺乏充分记录的数据和有关其长期性能的了解，尤其是在环境条件和持续载荷共同作用下。本文介绍了湿热暴露和持续应变对拉挤电子玻璃/乙烯基酯复合材料的协同效应的研究结果。可以看出，增加应变水平会产生很大的影响，并可能导致破坏机制的变化，特别是与水分吸收有关。高应变与中等至高温相结合导致的灾难性故障要比高温与较低应变相结合导致的灾难性故障要严重得多。这些影响在张力和短梁剪切模式中被注意到，并且通过吸潮，动态机械热分析（DMTA）和傅立叶变换红外光谱（FTIR）研究证实了整体劣化。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号