| 横向腹板增强复合材料夹层梁受弯性能试验研究 |
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| 引用本文： | 张富宾,刘伟庆,王慧,齐玉军,方海.横向腹板增强复合材料夹层梁受弯性能试验研究[J].玻璃钢/复合材料,2018(5):53-57. |
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| 作者姓名： | 张富宾 刘伟庆 王慧 齐玉军 方海 |
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| 作者单位： | 江苏大学土木工程与力学学院,镇江,212013
南京工业大学土木工程学院,南京,210009
金山职业技术学院建筑与艺术系,扬中,212200 |
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| 基金项目： | 国家自然科学基金项目(51708255)，江苏省自然科学基金项目(BK20160523)，江苏大学科青年人才项目(16JDG016) |
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| 摘 要： | 通过四点弯试验研究横向腹板增强复合材料夹层梁受弯性能,得到不同腹板间距、厚度对夹层梁弯曲破坏模式、刚度、极限承载力及延性性能的影响规律。结果表明:横向腹板能改变夹层梁的破坏模式,无腹板增强夹层梁破坏模式为芯材剪切破坏,横向腹板增强夹层梁破坏模式为多区格渐进破坏模式;相对于无腹板增强夹层梁,横向腹板能显著增强复合材料夹层梁的延性特性,最高达229%,腹板间距越小,夹层梁延性性能越好。
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| 关 键 词： | 复合材料 夹层梁 横向腹板 弯曲性能 延性 composite material sandwich beam transverse ribs bending performance ductility |
EXPERIMENTAL STUDY ON FLEXURAL BEHAVIOR OF SANDWICH BEAMS WITH TRANSVERSE RIBS |
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| Abstract: | This paper explores the flexural performance of sandwich beams with transverse ribs in four point bending tests.The effects of the thickness and space of the ribs on the failure modes,stiffness,ultimate bending strength and ductility properties of the sandwich beams were obtained.Test results indicates that the transverse ribs can change the failure mode of the sandwich beams.The beam without transverse ribs failed in core shear failure,while beams with transverse ribs failed in a more ductility failure mode.The transverse ribs can significantly increase the ductility properties of the sandwich beam with a maximum of 229％.The smaller the rib space,the better ductility performance. |
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