FRP复合材料工字梁结构性能研究
摘要：介绍纤维增强聚合物(FRP)复合材料工字梁的结构性能。在翼缘与腹板宽度比(bf/bw)及翼缘碳纤维和玻璃纤维体积含量变化的4点弯曲条件下,进行一系列梁的抗弯性能试验研究。通过试验验证以及有限元模拟方法对多层碳纤维/E-玻璃纤维/乙烯基酯组成的混合FRP梁结构性能进行分析研究,其中非线性三维有限元分析方法研究NF梁的性能,可精确求解混合FRP层合板的多层组合问题,从而确定梁中CFRP和GFRP的最佳组成,以便优化设计混合纤维布梁。
关键词：FRP复合材料工字梁抗弯性能有限元分析
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[4] 陈伟,杨勇新,李彪.纤维增强复合材料长期徐变性能研究[J].玻璃钢,2017(3):6-11.
[5] 葛亮,陈勃.FRP在海洋桥梁中的应用前景 [J].中国水运,2017 (2):199-201.
[6] 孟履祥,徐福泉,关建光,等.碳纤维筋(CFRP筋)松弛损失试验研究[J].施工技术,2005,34(7):40-41,53.
[7] 李廷舒,吴佳昕.新型建材 GFRP 在土木工程领域的应用[J].房地产导刊,2015(18):434.
[8] ZWEBEN C.Tensile strength of hybrid composites[J].Journal of materials science,1977,12(7):1325-1337.
[9] MANDERS P W,BADER M G .The strength of hybrid glass/carbon fibre composites-Part 2 a statistical model[J].Journal of materials science,1981,16(8):2246-2256.
[10] FUKUDA H.An advanced theory of the strength of hybrid composites[J].Journal of materials science,1984,19(3):974-982.
[11] KHATRI S C,KOCZAK M J .Thick-section AS4-graphite/E-glass/PPS hybrid composites:Part I.tensile behavior[J].Composites science and technology,1996,56(2):181-192.
[12] 郭馨艳,钟明,解金辉,等.先张预应力 CFL 加固 RC 梁预应力损失的试验研究[J].试验力学,2016,31(2):141-148.
[13] 易亚敏.预应力 CFRP 加固混凝土方柱轴心受压试验及有限元分析[D].哈尔滨:东北林业大学,2012.
[2] CHOU T,KELLY A.Mechanical properties of composites[J].Annual review of materials science,1980,10:229-259.
[3] 王欣诚,谢忠,许焰斌,等.FRP复合材料力学性能及其在工程中的应用[J].工程设备与材料,2017(9):138-139.
[4] 陈伟,杨勇新,李彪.纤维增强复合材料长期徐变性能研究[J].玻璃钢,2017(3):6-11.
[5] 葛亮,陈勃.FRP在海洋桥梁中的应用前景 [J].中国水运,2017 (2):199-201.
[6] 孟履祥,徐福泉,关建光,等.碳纤维筋(CFRP筋)松弛损失试验研究[J].施工技术,2005,34(7):40-41,53.
[7] 李廷舒,吴佳昕.新型建材 GFRP 在土木工程领域的应用[J].房地产导刊,2015(18):434.
[8] ZWEBEN C.Tensile strength of hybrid composites[J].Journal of materials science,1977,12(7):1325-1337.
[9] MANDERS P W,BADER M G .The strength of hybrid glass/carbon fibre composites-Part 2 a statistical model[J].Journal of materials science,1981,16(8):2246-2256.
[10] FUKUDA H.An advanced theory of the strength of hybrid composites[J].Journal of materials science,1984,19(3):974-982.
[11] KHATRI S C,KOCZAK M J .Thick-section AS4-graphite/E-glass/PPS hybrid composites:Part I.tensile behavior[J].Composites science and technology,1996,56(2):181-192.
[12] 郭馨艳,钟明,解金辉,等.先张预应力 CFL 加固 RC 梁预应力损失的试验研究[J].试验力学,2016,31(2):141-148.
[13] 易亚敏.预应力 CFRP 加固混凝土方柱轴心受压试验及有限元分析[D].哈尔滨:东北林业大学,2012.
Research on Structural Properties of FRP Composite I-beam
Abstract: The structural properties of I-beams made of fiber reinforced polymer composites are introduced. A series of bending tests were carried out under the four point bending conditions of flange to web width ratio(bf/bw) and flange carbon fiber and glass fiber volume content changes. Through the experimental verification and finite element simulation method, the structural performance of multi-layer carbon fiber/E-glass fiber/vinyl ester composite FRP beam is analyzed. The nonlinear three-dimensional finite element analysis method is used to study the performance of NF beam, which can accurately solve the multi-layer composite problem of composite FRP laminates, so as to determine the optimal composition of CFRP and GFRP in the beam, in order to optimize the design of hybrid fiber cloth beam.
Keywords: FRP composite material; I-beam; flexural performance; finite element analysis
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