| 单向纤维腹板增强复合材料夹层结构的受弯性能试验研究 |
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| 引用本文： | 周强,刘伟庆,方海. 单向纤维腹板增强复合材料夹层结构的受弯性能试验研究[J]. 新型建筑材料, 2011, 38(8) |
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| 作者姓名： | 周强 刘伟庆 方海 |
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| 作者单位： | 南京工业大学土术工程学院,江苏南京,210009 |
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| 基金项目： | 国家自然科学基金项目(50978134,51008157); 江苏省科技支撑计划(社会发展)项目(BE2009678); 博士点基金博导类课题(20103221110008) |
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| 摘 要： | 采用真空导入成型工艺,制备出单向纤维腹板增强复合材料夹层粱.对不同腹板间距、腹板厚度和增加横向腹板的试件进行了四点弯曲试验,研究其破坏模式和机理.基于经典夹层粱理论,采用有效的理论分析模型,预估了试件的抗弯刚度、破坏模式和受弯极限承载力,理论分析与试验结果较吻合.
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| 关 键 词： | 单向腹板 四点弯曲试验 失效模式和机理 复合材料:夹层结构 |
Experimental study on flexural behavior of fiber reinforced sandwich construction with only one-way webs |
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| ZHOU Qiang,LIU Weiqing,FANG Hai. Experimental study on flexural behavior of fiber reinforced sandwich construction with only one-way webs[J]. New Building Materials, 2011, 38(8) |
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| Authors: | ZHOU Qiang LIU Weiqing FANG Hai |
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| Affiliation: | ZHOU Qiang,LIU Weiqing,FANG Hai (College of Civil Engineering,Nanjing University of Technology,Nanjing 210009,Jiangsu,China) |
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| Abstract: | Fiber reinforced sandwich composites with only one-way webs were fabricated by vacuum infusion molding process (VIMP).Test species with horizontal webs,different spaces between adjoining webs and web thicknesses were experimentally studied by four-point bending test.The failure mode and mechanism were observed and investigated.The flexural stiffness,ultimate bearing capacity and failure mode of sandwich composites were studied by classical sandwich beam theory and valid theoretical analysis model.Results of... |
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| Keywords: | one-way webs four-point bending test failure mode and mechanism composites sandwich |
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