基于耦合准则的粘接接头粘接试验方法研究

IF 5.3 2区工程技术 Q1 MECHANICS

Engineering Fracture Mechanics Pub Date : 2025-08-23 DOI:10.1016/j.engfracmech.2025.111493

Pierre Bidaud , Thomas Bonnemains , Eric Lolive , Nicolas Carrere

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引用次数: 0

摘要

在这项研究中，作者提出了一种试验样品来研究界面上的破坏起裂和裂纹扩展，目的是确定其强度和韧性。所使用的双基材试样与结构粘合剂的薄接头粘合，以符合大多数工业应用。然后，设计试样几何形状和四点弯曲参数，以确定在某一界面处的破坏起裂位置，并在该界面处实现裂纹扩展的稳定演化。利用三维有限元模型对金属基材与工业环氧基胶粘剂的界面进行了优化。对优化后的试件结构和四点弯曲加载进行了试验研究。

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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A Coupled Criterion-based approach to develop an adherence test for adhesively bonded joints

In this study the authors propose a test specimen developed to study both failure initiation and crack propagation at the interface with the aim to determine its strength and toughness. The two-substrate specimen used was bonded with a thin joint of structural adhesive, to conform to most of the industrial applications. Then, geometry of the specimen and parameters of the four-point bending was designed to locate failure initiation at one interface and in order to have a stable evolution of the crack propagation at this interface. This optimization work was performed using 3D Finite Element Model for an interface of metallic substrates and an industrial epoxy based adhesive. An experimental campaign was carried out on the optimized configuration of the specimen and the four-point bending flexural loading.

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来源期刊

Engineering Fracture Mechanics 物理-力学

CiteScore

8.70

自引率

13.00%

发文量

606

审稿时长

74 days

期刊介绍： EFM covers a broad range of topics in fracture mechanics to be of interest and use to both researchers and practitioners. Contributions are welcome which address the fracture behavior of conventional engineering material systems as well as newly emerging material systems. Contributions on developments in the areas of mechanics and materials science strongly related to fracture mechanics are also welcome. Papers on fatigue are welcome if they treat the fatigue process using the methods of fracture mechanics.