吉林大学学报(工学版) ›› 2026, Vol. 56 ›› Issue (1): 131-139.doi: 10.13229/j.cnki.jdxbgxb.20240662

• 材料科学与工程 • 上一篇    下一篇

热塑性复合材料-金属胶铆混合接头刚度预测模型

张红哲1(),贾煜鑫1,鲍永杰2,杨宇星2()   

  1. 1.大连理工大学 工程训练中心，辽宁 大连 116024
    2.大连海事大学 轮机工程学院，辽宁 大连 116026
  • 收稿日期:2024-06-14 出版日期:2026-01-01 发布日期:2026-02-03
  • 通讯作者: 杨宇星 E-mail:zhanghongzhe@dlut.edu.cn;yangyuxing@dlmu.edu.cn
  • 作者简介:张红哲（1970-），女，副教授，博士.研究方向：复合材料先进制造技术.E-mail：zhanghongzhe@dlut.edu.cn
  • 基金资助:
    国家自然科学基金项目(U21A20165);国家自然科学基金项目(52301359);大连市科技创新基金项目(2022JJ12GX033);辽宁省应用基础研究项目(2022JH2/101300221)

Stiffness prediction model of thermoplastic composites-metal bonded-riveted hybrid joints

Hong-zhe ZHANG1(),Yu-xin JIA1,Yong-jie BAO2,Yu-xing YANG2()   

  1. 1.Engineering Training Center，Dalian University of Technology，Dalian 116024，China
    2.College of Marine Engineering，Dalian Maritime University，Dalian 116026，China
  • Received:2024-06-14 Online:2026-01-01 Published:2026-02-03
  • Contact: Yu-xing YANG E-mail:zhanghongzhe@dlut.edu.cn;yangyuxing@dlmu.edu.cn

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摘要：

针对汽车轻量化设计中对胶铆混合连接接头解析模型的开发相对较少，本文提出了一种基于弹簧-质量理论的碳纤维增强热塑性复合材料-金属胶铆混合连接接头承载刚度预测模型，以深化对混合连接结构刚度的理解。通过准静态拉伸实验验证了弹簧-质量模型的可靠性，并基于该模型探讨了胶层厚度、搭接长度、铆钉孔直径对接头刚度的影响。结果表明：随着胶层厚度增加，接头整体刚度和胶层剪切刚度降低，胶层厚度每增加0.01 mm，胶层剪切刚度平均降低约1.94%；增加搭接长度能提升接头整体刚度和胶层剪切刚度，但会显著降低金属基板的刚度；随着铆钉孔直径增加，接头整体刚度和铆钉刚度增加，但胶层剪切刚度降低，从而影响接头连接性能。

关键词: 碳纤维增强热塑性复合材料, 弹簧-质量模型, 胶铆混合连接接头, 刚度预测

Abstract:

Given the relatively limited development of analytical models for adhesive-rivet hybrid joints in automotive lightweight design， this paper proposes a load-bearing stiffness prediction model for carbon fiber-reinforced thermoplastic composite-to-metal adhesive-rivet hybrid joints based on spring-mass theory， aiming to deepen the understanding of stiffness in hybrid joint structures. The reliability of the spring-mass model was verified by quasi-static tensile test. Based on the proposed spring-mass model， the effects of adhesive layer thickness， lap length， and rivet hole diameter on the stiffness of the joint structure are discussed. The main conclusions are as follows： with an increase in the thickness of the adhesive layer， both the overall stiffness of the joint and the shear stiffness of the adhesive layer decrease. For every 0.01 mm increase， the shear stiffness of the adhesive layer decreases by about 1.94% on average. Increasing the lap length can improve the overall stiffness of the joint and the shear stiffness of the adhesive layer， but it numerically reduces the stiffness of the metal substrate significantly. As the diameter of the rivet hole increases， both the overall stiffness of the joint and the stiffness of the rivet increase， but the shear stiffness of the adhesive layer is reduced， which affects the joint's connection performance.

Key words: carbon fiber reinforced thermoplastic composites, spring-mass model, bonded-riveted hybrid joint, stiffness prediction

中图分类号: 

  • TG498

图1

单搭接胶铆混合连接接头示意图和弹簧-质量模型"

图2

质量M4、M5受力分析"

图3

被连接物剪切应力分析"

表1

CFRTP力学性能"

参数变量数值
纤维方向弹性模量/GPaE1138
基体方向弹性模量/GPaE213.8
面内剪切模量/GPaG123.7
泊松比υ0.3
纤维方向拉伸失效强度/MPaXT2107
纤维方向压缩失效强度/MPaXC814.5
基体方向拉伸失效强度/MPaYT81.4
基体方向压缩失效强度/MPaYC139.8
面内剪切强度/MPaG1234.7

表2

不同材料的的力学性能"

参数304不锈钢

6061-T6

铝合金

Araldite AV

138M/HV998

弹性模量/GPa193694.89±0.81
剪切模量/GPa--1.56±0.01
泊松比0.250.330.35

图4

基板、胶层和铆钉的尺寸示意图（单位：mm）"

图5

实验设备及布置"

图6

载荷-位移曲线"

图7

弹簧-质量模型预测位移值与实验数据对比"

图8

胶层厚度对刚度的影响"

图9

搭接长度对刚度的影响"

图10

铆钉孔直径对刚度的影响"

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