单搭接节点裂纹扩展的径向点插值法和混合模式能量释放率准则

IF 4.2 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Engineering Analysis with Boundary Elements Pub Date : 2025-02-01 DOI:10.1016/j.enganabound.2024.106095

D.C. Gonçalves , L.D.C. Ramalho , R.D.S.G. Campilho , J. Belinha

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引用次数: 0

摘要

目前，粘接接头由于其与传统连接技术相比具有宝贵的优势，在高端行业中得到了广泛的应用。然而，准确而高效地预测粘接接头的力学行为仍然是减少结构重量、材料使用和计算成本的主要挑战。本文将基于无网格径向点插值法（RPIM）的断裂扩展算法扩展到粘接单搭接接头（SLJ）。利用相互作用积分计算分离应力强度因子，考虑混合模式能量释放率准则预测裂纹起裂。数值解能较好地预测实验数据和商业有限元模拟结果。

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The radial point interpolation method and mixed-mode energy release rate criterion for crack growth in single lap joints

Nowadays, adhesively bonded joints are widely used in high-end industries due to their valuable advantages over traditional joining techniques. Nevertheless, predicting the mechanical behaviour of adhesively bonded joints with accuracy and efficiency still represents a major challenge reducing structure weight, material usage, and computational cost. In this work, a fracture propagation algorithm based on the meshless Radial Point Interpolation Method (RPIM) is extended to adhesively bonded Single Lap Joints (SLJ). Separated stress intensity factors are calculated using the interaction integral, allowing to predict crack initiation considering a mixed-mode energy release rate criterion. The numerical solutions predict with accuracy the experimental data and commercial FEM simulations.

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来源期刊

Engineering Analysis with Boundary Elements 工程技术-工程：综合

CiteScore

5.50

自引率

18.20%

发文量

368

审稿时长

56 days

期刊介绍： This journal is specifically dedicated to the dissemination of the latest developments of new engineering analysis techniques using boundary elements and other mesh reduction methods. Boundary element (BEM) and mesh reduction methods (MRM) are very active areas of research with the techniques being applied to solve increasingly complex problems. The journal stresses the importance of these applications as well as their computational aspects, reliability and robustness. The main criteria for publication will be the originality of the work being reported, its potential usefulness and applications of the methods to new fields. In addition to regular issues, the journal publishes a series of special issues dealing with specific areas of current research. The journal has, for many years, provided a channel of communication between academics and industrial researchers working in mesh reduction methods Fields Covered: • Boundary Element Methods (BEM) • Mesh Reduction Methods (MRM) • Meshless Methods • Integral Equations • Applications of BEM/MRM in Engineering • Numerical Methods related to BEM/MRM • Computational Techniques • Combination of Different Methods • Advanced Formulations.