COMBINED EFFECTS OF SUSTAINED TENSILE LOADING AND ELEVATED TEMPERATURES ON THE MECHANICAL PROPERTIES OF PULTRUDED BFRP PLATES

摘要：

　　In this article,the combined effects of sustained tensile loading and elevated temperatures on the mechanical properties of a pultruded basalt fiber-reinforced polymer(BFRP)plate was studied.The tensile stresses were set as 35%,50%and 65%of its ultimate tensile strength(fu),and the exposure temperatures were room temperature,80 ℃,120 ℃ and 160 ℃.The variation of the tensile and interlaminar shear(ILSS)properties was studied.As found,residual properties evolution of BFRP specimens largely depended on the exposure temperatures due to temperature sensitivity of the epoxy resin.As the exposure temperature excess the glass transition temperature of the composites(123.7 ℃),leading to a serious degradation in the bonding performances between fiber and epoxy resin.The ILSS decreased by 20.8%and 54.3%for the specimen exposed at 160 ℃ with 35%fu and 50%fu,respectively.Sustained tensile loading led to stress redistribution in BFRP specimens especially at elevated temperatures.

关键词： Pultruded BFRP plates Sustained tensile loading Elevated temperatures Residual mechanical properties

作者: Zhongyu Lu Guijun Xian Bing Yuan Jianhe Xie

作者单位: School of Civil and Transportation Engineering,Guangdong University of Technology,No.100 Waihuan Xi School of Civil Engineering,Harbin Institute of Technology,202 Haihe Road,Nangang District,Harbin 15

会议类型: 国际会议

会议名称: the Sixth Asia-Pacific Conference on FRP in Structures (APFIS2017)(第六届亚太纤维增强复合材料结构工程国际会议暨第十届全国建设工程FRP应用学术交流会)

会议地点: 新加坡

会议语种:英文

页码: 1-4

在线出版日期: 2017-07-19（万方平台首次上网日期，不代表论文的发表时间）