三维编织复合材料胶接接头力学性能试验研究

玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (2): 66-69.

三维编织复合材料胶接接头力学性能试验研究

杨冠侠^1,2, 杨涛^1,2*, 杜宇^1,2

1.天津市现代机电装备技术重点实验室,天津300387;
2.天津工业大学机械工程学院,天津300387

收稿日期:2017-07-10 出版日期:2018-02-28 发布日期:2018-02-28
通讯作者: 杨涛(1970-),男,教授,博士,研究方向为复合材料成型技术与装备、机电一体化技术等,yangtao@tjpu.edu.cn。
作者简介:杨冠侠(1993-),女,硕士研究生,研究方向为复合材料成型技术与装备。
基金资助:
国家自然科学基金(11372220)

THE MECHANICAL PROPERTIES OF 3D BRAID COMPOSITE ADHESIVE JOINTS

YANG Guan-xia^1,2, YANG Tao^1,2*, DU Yu^1,2

1.Advanced Mechatronics Equipment Technology Tianjin Area Major Laboratory, Tianjin 300387, China;
2.School of Mechanical Engineering, Tianjin Polytechnic University, Tianjin 300387, China

Received:2017-07-10 Online:2018-02-28 Published:2018-02-28

摘要/Abstract

摘要： 为了比较三维编织复合材料阶梯型和嵌套式搭接接头的胶接修复效果,对搭接长度相同的两种接头进行了拉伸和弯曲力学性能研究。通过实验得到两种接头及完好试件的载荷-位移曲线,对比了修补后的试件强度与完好试件的强度,得到了接头试件的修复效率,并分析和总结了拉伸与弯曲试验试件的损伤过程及损伤形貌。实验结果显示:阶梯型胶接接头拉伸载荷作用下的修复率为37.75%,弯曲载荷作用下的修复率为66.25%;嵌套式胶接接头拉伸载荷作用下的修复率为18.97%,弯曲载荷作用下的修复率为21.44%。对比试验结果得出阶梯型胶接接头力学性能较好。

关键词: 三维编织复合材料, 阶梯型搭接, 嵌套式搭接, 胶接接头, 力学性能

Abstract: In order to compare the efficiency of 3D braid composite repair of different type joints, the mechanical properties of step lap joint and nested joint subjected to tensile and bending load were examined experimentally by keeping the same joint length for all samples. Load-displacement curves were obtained for each type of joint by the test. Then, the strength of samples and the repair efficiency were acquired by comparing the strength of joints with intact specimens. Meanwhile, the tensile and bending damage evolution and profiles of specimens were analyzed and summarized. The test results show that the step lap joint has better mechanical properties. The repair efficiency of step lap joint under tensile load was 37.75%, and under bending load, the repair efficiency was 66.25%. The repair efficiency of nested joint under tensile load can reach 18.97%, and under bending load, the repair efficiency can reach 21.44%.

Key words: 3D braid composite, step lap, nested lap, adhesive joint, mechanical properties

中图分类号:

TB332

杨冠侠, 杨涛, 杜宇. 三维编织复合材料胶接接头力学性能试验研究[J]. 玻璃钢/复合材料, 2018, 0(2): 66-69.

YANG Guan-xia, YANG Tao, DU Yu. THE MECHANICAL PROPERTIES OF 3D BRAID COMPOSITE ADHESIVE JOINTS[J]. Fiber Reinforced Plastics/Composites, 2018, 0(2): 66-69.

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