夹芯复合材料胶螺混接结构强度研究

doi:10.19936/j.cnki.2096-8000.20260328.009

复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (3): 72-81.DOI: 10.19936/j.cnki.2096-8000.20260328.009

夹芯复合材料胶螺混接结构强度研究

方家宝¹, 王兵², 曹京宜³, 李想², 倪爱清⁴, 殷文昌³, 王继辉^1*

1.武汉理工大学材料科学与工程学院,武汉 430070;
2.洛阳船舶材料研究所,洛阳 471039;
3.中国人民解放军92228部队,北京 100072;
4.武汉理工大学材料复合新技术国家重点实验室,武汉 430070

收稿日期:2025-01-22 出版日期:2026-03-28 发布日期:2026-04-22
通讯作者: 王继辉(1962—),男,博士,教授,博士生导师,研究方向为聚合物基复合材料,jhwang@whut.edu.cn
作者简介:方家宝(2000—),男,硕士,研究方向为复合材料结构强度。

Study on the strength of sandwich composite bonded-bolted hybrid joint structures

FANG Jiabao¹, WANG Bing², CAO Jingyi³, LI Xiang², NI Aiqing⁴, YIN Wenchang³, WANG Jihui^1*

1. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;
2. Luoyang Ship Material Research Institute, Luoyang 471039, China;
3. Unit 92228, People's Liberation Army, Beijing 100072, China;
4. State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China

Received:2025-01-22 Online:2026-03-28 Published:2026-04-22

摘要/Abstract

摘要： 本文采用试验和数值模拟相结合的方法研究了夹芯复合材料-钢板胶螺混合接头在拉伸载荷下的连接强度和失效模式,考察了接头宽度、螺孔端距和螺孔孔间距对混合接头强度的影响,并进行了单因素优化设计。结果表明,数值模拟载荷-位移曲线的总体趋势和失效模式与试验结果吻合较好,初始失效为端部胶层失效;随着拉伸位移增加,胶层裂纹持续扩展,螺栓逐渐与胶层共同承载,螺孔处蒙皮发生挤压破坏;最终胶层彻底破坏,夹芯板与钢板完全脱黏。单因素优化设计表明,接头刚度、极限载荷随宽度增加不断增加,但失效位移和连接效率不断降低;端距和孔间距不影响接头刚度,极限载荷和连接效率随着端距、孔间距的增加而增加。最佳设计参数组合为:宽度与孔径之比为3.5,端距与孔径之比为3.0,孔间距与孔径之比为3.5。

关键词: 夹芯复合材料, 胶螺混合连接, 数值模拟, 优化设计

Abstract: In this paper, numerical simulations combined with experimental investigations were carried out to study the strength and failure modes of the bonded-bolted double-lap sandwich composite-steel joints under tensile loads. The influences of the joint width, end distance and hole spacing on the strength of the joint were studied respectively, and single factor optimization design was conducted. The results show that the overall trend and failure modes of the numerical and experimental load-displacement curves are in good agreement. The initial failure occurs in the adhesive layer at the end of the bonding area. As the tensile displacement increases, the cracks of the adhesive layer propagate, and the bolt gradually bears the load together with the adhesive layer with compressive failure of the skin occurring at the screw hole. The final failure of the structure occurs when the adhesive layer completely fails and the sandwich panel and steel plate are completely detached. The single factor optimization design shows that the joint stiffness and ultimate load increase continuously with the increase of joint width, but the failure displacement and connection efficiency decrease. The results also show that the stiffness of the joint is not affected by the end distance and hole spacing, whereas the ultimate load and connection efficiency increase with the increase of end distance and hole spacing. The optimal combination of the design factors is as follows: the width-to-aperture ratio is 3.5, the end distance-to-aperture ratio is 3.0, and the hole spacing-to-aperture ratio is 3.5.

Key words: sandwich composite, bonded-bolted hybrid joint, numerical simulation, optimization

中图分类号:

TB332

方家宝, 王兵, 曹京宜, 李想, 倪爱清, 殷文昌, 王继辉. 夹芯复合材料胶螺混接结构强度研究[J]. 复合材料科学与工程, 2026, 0(3): 72-81.

FANG Jiabao, WANG Bing, CAO Jingyi, LI Xiang, NI Aiqing, YIN Wenchang, WANG Jihui. Study on the strength of sandwich composite bonded-bolted hybrid joint structures[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(3): 72-81.

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夹芯复合材料胶螺混接结构强度研究

Study on the strength of sandwich composite bonded-bolted hybrid joint structures

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