SEM in situ laboratory investigations on damage growth in GFRP composite under three-point bending tests

查看全文 作　　者：ZHOU [1]HongWei;MISHNAEVSKY Jr [2]L;BRONDSTED [2]p;TAN [1]JinBiao;GUI [1]LeLe

机构地区：[1]State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing 100083, China;[2]Rise National Laboratory for Sustainable Energy, DTU, AFM-228, P.O. Box 49, DK-4000 Roskilde, Denmark

出　　处：《Chinese Science Bulletin》索引2010年第55卷第12期,共10页

基　　金：supported by the Commission of the European through 6th Framework Programme (Grant No. SES6-019945);Program of Inter national S & T Cooperation,MOST (Grant No. 52010NR0894) 摘　　要：Glass fiber-reinforced polymer (GFRP) composites are widely used in low-weight constructions.SEM (scanning electron microscopy) in situ experiments of damage growth in GFRP composite under three-point bending loads are carried out.By summarizing the experimental results of three groups of samples with different orientation angles of fibers,the dependence of mechanical parameters on the orientation angles of fibers are analyzed.The regression analysis show that the peak strengths,the elastic strengths and the elastic modulus of the composites decease with the orientation angles of fibers almost linearly.Moreover,the damage growth and meso-scale structure changes in GFRP composites during three-point bending loading are analyzed. 关键词：玻璃钢复合材料三点弯曲试验实验室扫描电镜现场调查损伤纤维增强聚合物扫描电子显微镜

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SEM in situ laboratory investigations on damage growth in GFRP composite under three-point bending tests

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