{"title":"A fatigue model under Cosserat peridynamic framework for concrete fatigue cracking","authors":"Xianyang Guo, Ji Wan, Xihua Chu, Shan Li","doi":"10.1007/s10704-023-00757-0","DOIUrl":null,"url":null,"abstract":"<div><p>A novel fatigue model under Cosserat peridynamic framework is proposed to investigate concrete fatigue performance. In this model, a novel cyclic bond failure criterion is established to measure the combined tension/compressive-shear fatigue failure in concrete, which is derived from the Bresler-Pister criterion. Three benchmarks with different fatigue crack modes in concrete are designed. Results show that the mode I and mixed mode I-II fatigue crack patterns are predicted. In the three-point-bend beam fatigue test, the numerical result matches well with the experimental result, in the uniaxial compressive fatigue test, the effects of Cosserat parameters on fatigue crack patterns are discussed. Results found that the Cosserat parameters reflect the effects of concrete microstructures on crack patterns, and the larger Cosserat shear modulus accelerates the fatigue crack propagation process.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"246 1","pages":"1 - 22"},"PeriodicalIF":2.2000,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Fracture","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10704-023-00757-0","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
A novel fatigue model under Cosserat peridynamic framework is proposed to investigate concrete fatigue performance. In this model, a novel cyclic bond failure criterion is established to measure the combined tension/compressive-shear fatigue failure in concrete, which is derived from the Bresler-Pister criterion. Three benchmarks with different fatigue crack modes in concrete are designed. Results show that the mode I and mixed mode I-II fatigue crack patterns are predicted. In the three-point-bend beam fatigue test, the numerical result matches well with the experimental result, in the uniaxial compressive fatigue test, the effects of Cosserat parameters on fatigue crack patterns are discussed. Results found that the Cosserat parameters reflect the effects of concrete microstructures on crack patterns, and the larger Cosserat shear modulus accelerates the fatigue crack propagation process.
期刊介绍：
The International Journal of Fracture is an outlet for original analytical, numerical and experimental contributions which provide improved understanding of the mechanisms of micro and macro fracture in all materials, and their engineering implications.
The Journal is pleased to receive papers from engineers and scientists working in various aspects of fracture. Contributions emphasizing empirical correlations, unanalyzed experimental results or routine numerical computations, while representing important necessary aspects of certain fatigue, strength, and fracture analyses, will normally be discouraged; occasional review papers in these as well as other areas are welcomed. Innovative and in-depth engineering applications of fracture theory are also encouraged.
In addition, the Journal welcomes, for rapid publication, Brief Notes in Fracture and Micromechanics which serve the Journal''s Objective. Brief Notes include: Brief presentation of a new idea, concept or method; new experimental observations or methods of significance; short notes of quality that do not amount to full length papers; discussion of previously published work in the Journal, and Brief Notes Errata.
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