Numerical modeling and failure analysis of steel fiber-reinforced concrete beams in a reformulated mesoscopic peridynamic model

IF 4.2 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Engineering Analysis with Boundary Elements Pub Date : 2024-10-16 DOI:10.1016/j.enganabound.2024.105993

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引用次数: 0

Abstract

This paper introduces a mesoscopic peridynamic model aimed at predicting and analyzing the failure of steel fiber-reinforced concrete within the framework of ordinary state-based peridynamics. This model incorporates additional interface force terms to handle substantial differences in component sizes between the fibers and concrete matrix, as well as the intricate behavior at the interface. These terms facilitate the representation of bond and frictional forces based on experimental data and empirical formulas. Additionally, it allows for non-uniform discretization of fiber-matrix interactions to improve computational efficiency. Several typical numerical examples performed by the proposed model closely align with experimental data in terms of bonding and slip behavior at the interface, crack patterns, and p-crack mouth open displacement (P-CMOD) curves, demonstrating the rationality and applicability of the model for numerical analysis on deformation and failure of steel fiber-reinforced concrete.

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重构介观围动力模型中的钢纤维加固混凝土梁数值建模与失效分析

本文介绍了一种介观周向动力学模型，旨在基于普通状态的周向动力学框架内预测和分析钢纤维加固混凝土的破坏。该模型加入了额外的界面力项，以处理纤维与混凝土基体之间成分尺寸的巨大差异，以及界面上错综复杂的行为。这些术语有助于表示基于实验数据和经验公式的粘结力和摩擦力。此外，它还允许对纤维与基体的相互作用进行非均匀离散化，以提高计算效率。在界面粘结和滑移行为、裂缝模式和 P-CMOD 曲线等方面，所提模型的几个典型数值实例与实验数据密切吻合，证明了该模型在钢纤维增强混凝土变形和破坏数值分析中的合理性和适用性。

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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.