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工程力学  2015 

复合材料夹层结构自插式平接节点抗弯性能试验研究

DOI: 10.6052/j.issn.1000-4750.2011.10.0680, PP. 115-122

Keywords: 复合材料夹层结构,自插式平接节点,复合材料连接型材,抗弯性能,破坏模式

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Abstract:

采用复合材料连接型材的复合材料夹层结构连接节点具有轻质、防腐、无磁性等优点。该文试验研究复合材料夹层结构自插式平接胶结节点的受弯性能,重点考察连接型材的纤维铺设、节点搭接长度等因素对连接节点荷载-变形关系、应变发展规律和破坏模式的影响。试验结果表明,自插式平接节点的破坏形式主要表现为三类:节点连接区域的纤维面层与芯材的剥离破坏、搭接胶层剥离破坏、插入端变截面处纤维面层与芯材剥离破坏;连接型材纤维布的铺设方法与层数、胶结搭接长度以及节点区域的构造措施是影响节点承载力的主要因素。论文对平接节点的破坏机理进行了分析,研究成果对复合材料夹层板结构平接胶结节点的设计具有参考价值。

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