An extended average strain energy density criterion for predicting crack propagation of mixed mode I-II fracture in concrete

IF 4.7 2区工程技术 Q1 MECHANICS

Engineering Fracture Mechanics Pub Date : 2025-04-03 DOI:10.1016/j.engfracmech.2025.111107

Maomao Yang , Wenyan Yuan , Wei Dong , Binsheng Zhang , Qian Lu

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引用次数: 0

Abstract

Three-point bend and four-point shear tests were conducted to analyze the crack initiation and propagation of mixed mode I-II fracture in concrete under different mode mixity ratios. The digital image correlation technique was employed to monitor the crack propagation process. Then, the critical average strain energy densities were numerically calculated for crack initiation and different loading stages of crack propagation. Subsequently, an extended average strain energy density (EASED) criterion was proposed to predict the crack propagation of mixed mode I-II fracture in concrete. A numerical analysis method integrating both the EASED criterion and fictitious crack model was proposed and validated to predict the crack initiation and propagation process of mixed mode I-II fracture in concrete. The EASED criterion enhances the accuracy of predicting fracture behavior of mixed mode I-II crack in concrete, offering a more reliable approach for assessing fracture processes.

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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.