Experimental fatigue characterization and modeling of a bi-component structural acrylic adhesive: Application to single-lap joints

IF 3.2 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives Pub Date : 2025-04-26 DOI:10.1016/j.ijadhadh.2025.104026

Sidonie Pinaroli , Katell Derrien , Anthony Reullier , Léo Morin , Véronique Favier

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引用次数: 0

Abstract

The aim of this paper is to predict the fatigue behavior of bonded joints made of a bi-component structural acrylic adhesive. The approach considered is based on a characterization of the fatigue properties of the bulk adhesive combined with a finite element modeling of the bonded joint to provide the heterogeneous stress field within the adhesive. The identification of the fatigue model is conducted with experimental bulk adhesive tests under two loadings (tensile–compression and tensile–tensile) in order to account for the effect of the mean stress. A modified Crossland criterion, in the limited life time domain, is used to predict the fatigue life of the bonded joint assembly. The numerical fatigue life determined with this approach is compared to the experimental fatigue life of the assembly. A good correlation is found between the numerical model and the experimental results.

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双组分结构丙烯酸胶粘剂的疲劳实验表征与建模：在单搭接接头上的应用

本文的目的是预测双组份结构丙烯酸胶粘剂粘合接头的疲劳性能。所考虑的方法是基于散装胶粘剂的疲劳特性的表征，结合粘结接头的有限元建模，以提供胶粘剂内的非均匀应力场。为了考虑平均应力的影响，采用拉伸-压缩和拉伸-拉伸两种载荷下的体粘接试验对疲劳模型进行了识别。采用改进的Crossland准则，在有限寿命时域内预测粘接接头组件的疲劳寿命。用该方法确定的数值疲劳寿命与试验疲劳寿命进行了比较。数值模型与实验结果吻合较好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.