基于 XFEM 和流体空腔模型的微胶囊开裂性能微尺度研究

IF 1.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Modelling and Simulation in Materials Science and Engineering Pub Date : 2024-05-29 DOI:10.1088/1361-651x/ad4d0c

Ruotong Wang, Yaqiong Fan, Huiyang Huang and Hua Huang

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引用次数: 0

摘要

微胶囊自修复已成为树脂矿物复合材料微裂纹修复的常用方法，而微胶囊的开裂性能直接影响其对基体材料的修复效率。本研究探讨了微胶囊芯体积对微胶囊开裂性能的影响。在扩展有限元法的基础上，结合内聚区模型和流体空腔模型，建立了考虑微胶囊芯体积的代表性体积单元（RVE）。在此基础上，对不同微胶囊芯体积的 RVE 在动态载荷下的开裂性能进行了数值模拟研究，分别研究了完全填充和不完全填充微胶囊除了开裂行为之外的触发开裂过程。该研究为微胶囊的制备和微胶囊力学性能的数值模拟提供了参考。

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Micro-scale study of microcapsule cracking performance based on XFEM and fluid cavity model

Microcapsule self-healing has become popular for microcrack repairing in resin mineral composites, and the cracking performance of microcapsule directly affect their repair efficiency on the matrix material. In this study, the problem of how the volume of microcapsule core affects the cracking performance of microcapsule is addressed. Based on the extended finite element method, the representative volume element (RVE) considering the volume of microcapsule core is established by combining the cohesive zone model and the fluid cavity model. On this basis, a numerical simulation study of the cracking performance of RVE with different volumes of microcapsule core under dynamic loading is conducted to investigate the triggered cracking process of the fully filled and incompletely filled microcapsules besides their cracking behavior, respectively. This study provides a reference for the preparation of microcapsules and the numerical simulation of microcapsule mechanical properties.

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来源期刊

Modelling and Simulation in Materials Science and Engineering 工程技术-材料科学：综合

CiteScore

3.30

自引率

5.60%

发文量

审稿时长

1.7 months

期刊介绍： Serving the multidisciplinary materials community, the journal aims to publish new research work that advances the understanding and prediction of material behaviour at scales from atomistic to macroscopic through modelling and simulation. Subject coverage: Modelling and/or simulation across materials science that emphasizes fundamental materials issues advancing the understanding and prediction of material behaviour. Interdisciplinary research that tackles challenging and complex materials problems where the governing phenomena may span different scales of materials behaviour, with an emphasis on the development of quantitative approaches to explain and predict experimental observations. Material processing that advances the fundamental materials science and engineering underpinning the connection between processing and properties. Covering all classes of materials, and mechanical, microstructural, electronic, chemical, biological, and optical properties.