A coupled hydraulic-mechanical-chemical peridynamic model for simulating corrosion-induced failure of unsaturated reinforced concrete under hydraulic pressure

IF 4.2 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Engineering Analysis with Boundary Elements Pub Date : 2025-02-21 DOI:10.1016/j.enganabound.2025.106177

Shenhua Liu , Weizhong Chen , Jingqiang Yuan

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引用次数: 0

Abstract

Underwater reinforced concrete is vulnerable to chloride corrosion, which reduces the durability of underwater concrete structures. In this paper, by introducing time-varying chloride ion diffusion and non-uniform corrosion expansion failure model, a chemical-hydraulic-mechanical coupling peridynamic model of reinforced concrete corrosion expansion failure process in actual underwater environment is established. The proposed model focuses both on the unsaturated transport process of water and chloride and the corrosion failure of unsaturated reinforced concrete under water pressure. The validity of proposed model is firstly verified by comparing with experimental results and theoretical solutions. Then, the whole process of corrosion expansion failure of underwater reinforced concrete is simulated by using this model. The numerical results show that the developed chemical-hydraulic-mechanical coupling peridynamic model can simulate the penetration of water and chloride in unsaturated concrete and the failure process of concrete caused by chloride corrosion under water pressure. Furthermore, the effects of water pressure on water / chloride ion transport and corrosion expansion damage of underwater reinforced concrete were studied.

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模拟水压作用下非饱和钢筋混凝土腐蚀诱发破坏的水力-机械-化学周流体力学耦合模型

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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.