Experimental study on the mechanical behavior of BFRP-bamboo composite beam

IF 1.7 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Advanced Composites Letters Pub Date : 2019-07-31 DOI:10.1177/0963693519867335

Q. Lv, Ye Liu

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引用次数: 13

Abstract

This article proposes a basalt fiber-reinforced plastic–bamboo (BFRP-bamboo) composite beam consisting of BFRP sheet and laminated bamboo, aiming at fully utilizing advantages of bamboo and BFRP to improve the mechanical behavior of the laminated bamboo beam. A two-step test program is involved: (1) double shear test for bonding behavior between the BFRP and laminated bamboo and (2) loading test for mechanical behaviors of both laminated bamboo and BFRP-bamboo composite beams. Parameters affecting the bonding behavior are firstly concluded as the coated surface resin, types of bonding materials, and interfacial treatment. Then, the failure patterns of both laminated bamboo and BFRP-bamboo composite beam are discussed based on experimental observations. Key mechanical indexes, including the yield force, yield displacement, ultimate load, ultimate displacement, ductility, and stiffness, are analyzed based on load–displacement curves of tested specimens. Besides, theoretical analyses of bearing capacity of the BFRP-bamboo composite beam, featured as fracture failure, are conducted.

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BFRP竹复合梁力学性能的试验研究

本文提出了一种玄武岩纤维增强塑料-竹子（BFRP竹）复合梁，该复合梁由BFRP片材和层合竹组成，旨在充分利用竹子和BFRP的优点来改善层合竹梁的力学性能。包括两步试验程序：（1）对BFRP与竹层压板之间的粘结性能进行双剪试验；（2）对竹层压板和BFRP竹复合梁的力学性能进行加载试验。首先总结了影响粘接性能的参数为涂层表面树脂、粘接材料的类型和界面处理。然后，在实验观察的基础上，讨论了层合竹和BFRP竹复合梁的失效模式。基于试件的荷载-位移曲线，分析了包括屈服力、屈服位移、极限荷载、极限位移、延性和刚度在内的关键力学指标。此外，对以断裂破坏为特征的BFRP竹组合梁的承载力进行了理论分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Composites Letters 工程技术-材料科学：复合

自引率

0.00%

发文量

审稿时长

4.2 months

期刊介绍： Advanced Composites Letters is a peer reviewed, open access journal publishing research which focuses on the field of science and engineering of advanced composite materials or structures.