Numerical and experimental analysis of the performance of the metal patch compared to the composite patch under aging conditions in water immersion

IF 3.5 3区材料科学 Q2 ENGINEERING, CHEMICAL International Journal of Adhesion and Adhesives Pub Date : 2025-03-01 Epub Date: 2025-01-10 DOI:10.1016/j.ijadhadh.2025.103943

M.A. Errahmane , M. Benyettou , K. Madani , L. Rezgani , H. Amin , S.C. Djebbar , M. Belhouari , R.D.S.G. Campliho , X. Feaugas

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Abstract

This study investigates the mechanical performance of 2024-T3 aluminum plates repaired with metallic and composite patches under accelerated aging in water immersion. The adhesive and composite patch properties were experimentally characterized for various immersion durations and integrated into numerical models. Results revealed a substantial decline in stress transfer efficiency with aging, particularly for composite patches, which become less effective in absorbing stresses under humid conditions. Key factors, including loading type, crack length, immersion duration, and patch material, were analyzed. Stress analysis highlights the degradation of both the adhesive and the composite patch, leading to reduced load transfer from the damaged area. These findings show the critical impact of environmental conditions on the durability of bonded repairs and provide insights to optimize repair strategies for long-term performance. This work uniquely compares the performance of metallic and composite patch repairs on aluminum plates under aging conditions, highlighting the superior long-term durability of metallic patches in humid environments due to their resistance to water-induced degradation.

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对金属贴片与复合贴片在水浸老化条件下的性能进行了数值与实验分析

研究了2024-T3铝板金属修补和复合修补在水浸加速老化下的力学性能。实验表征了不同浸渍时间下胶粘剂和复合贴片的性能，并将其集成到数值模型中。结果表明，随着老化，应力传递效率显著下降，特别是复合材料贴片，在潮湿条件下吸收应力的效果较差。关键因素包括加载类型、裂缝长度、浸泡时间和修补材料。应力分析强调了粘合剂和复合贴片的降解，从而减少了从受损区域传递的载荷。这些发现表明了环境条件对粘接修复耐久性的关键影响，并为优化长期性能的修复策略提供了见解。这项工作独特地比较了老化条件下铝板上金属贴片和复合贴片的性能，突出了金属贴片在潮湿环境中优越的长期耐久性，因为它们抵抗水引起的降解。

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来源期刊

International Journal of Adhesion and Adhesives 工程技术-材料科学：综合

CiteScore

6.90

自引率

8.80%

发文量

200

审稿时长

8.3 months

期刊介绍： The International Journal of Adhesion and Adhesives draws together the many aspects of the science and technology of adhesive materials, from fundamental research and development work to industrial applications. Subject areas covered include: interfacial interactions, surface chemistry, methods of testing, accumulation of test data on physical and mechanical properties, environmental effects, new adhesive materials, sealants, design of bonded joints, and manufacturing technology.