Experimental study of adhesively bonded CFRP joints subjected to tensile loads

被引：107

作者：

Li, Jianfeng ^{[1
]}

Yan, Ying ^{[1
]}

Zhang, Taotao ^{[1
]}

Liang, Zudian ^{[1
]}

机构：

[1] Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 2015年 / 57卷

关键词：

Composites; Adhesively bonded joints; Single-lap; Double-lap; Scarf-lap; SINGLE-LAP JOINTS; STRENGTH PREDICTION; STRESS-ANALYSIS; COMPOSITE; MODELS;

D O I：

10.1016/j.ijadhadh.2014.11.001

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The tensile performance of adhesively bonded CFRP joints has been investigated experimentally. In this study, overlap length, adherend thickness, adherend width and scarf angle were chosen as design parameters. All load-displacement curves are linear, except that the thicker single-lap joints behave slightly nonlinearity due to the bending effect caused by eccentric loading. The lap shear strength is not directly proportional to overlap length, adherend thickness, adherend width and scarf angle for the brittle adhesive studied in the paper. The major failure mode includes adhesive shear failure and adherend delamination failure, sometimes accompanying with some fiber pull-out. Finally, the lap shear strength of three different lap types with similar bonding area (W=25 mm, L=10 mm, theta=5.71 degrees) and adherend thickness (0.96 mm) was analyzed. It is found that the double-lap joint has the highest ultimate failure load. However, when considering the lap region weight, the Scarf-lap joint is the most efficient. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：95 / 104

页数：10

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