多孔材料跨尺度相关分析中 M 积分的应用

IF 1.9 4区工程技术 Q3 MECHANICS

Mechanics Research Communications Pub Date : 2024-10-22 DOI:10.1016/j.mechrescom.2024.104337

Junling Hou , Jiahui Hu , Xicheng Cao , Xingming Peng , Qun Li , Chunguang Wang

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引用次数: 0

摘要

介观孔隙引起的损伤分析在多孔材料的开发和应用中备受关注。本研究提出了一种新颖的 M 积分应用方法，用于建立受损多孔材料的跨尺度相关分析。本文所介绍的多尺度损伤分析可分为两个主要步骤。具体来说，第一步是构建 M 积分与孔隙率之间的定量关系，通过数值计算得出不同孔隙率下的 M 积分值。随后，应用 M 积分随有效弹性模量下降所代表的材料损伤的变化，提供多孔材料孔隙率与有效弹性模量之间的跨尺度相关性。此外，还讨论了一个实例，以说明桥接参数 M-积分的具体应用。研究结果证实，M 积分是连接中观孔隙度和宏观损伤的有效参数，有望为多孔材料损伤模型的建立提供便利。这些发现对研究多孔材料的多尺度损伤分析具有重要价值。

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The implementation of M-integral in cross-scale correlation analysis of porous materials

The damage analysis caused by mesoscopic pores has attracted much attention in the development and application of porous materials. In this study, a novel application of M-integral is presented to establish a cross-scale correlation analysis of damaged porous materials. The multiscale damage analysis featured here can be proposed in two main steps. In detail, the first step is to construct a quantitative relationship between M-integral and porosity, where the values of M-integral for different porosity are calculated numerically. Subsequently, it applies the variation of M-integral with the material damage represented by a decrease in effective elastic modulus, and a cross-scale correlation between porosity and effective elastic modulus of porous material can be provided. In addition, an example is discussed to illustrate the specific application of this bridging parameter M-integral. The results confirm that M-integral can be an effective parameter bridging mesoscopic porosity and macroscopic damage, and is expected benefit to propose a convenient damage model of porous material. The findings should be of value in investigating the multiscale damage analysis of porous materials.

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来源期刊

Mechanics Research Communications 物理-力学

CiteScore

4.10

自引率

4.20%

发文量

114

审稿时长

9 months

期刊介绍： Mechanics Research Communications publishes, as rapidly as possible, peer-reviewed manuscripts of high standards but restricted length. It aims to provide: • a fast means of communication • an exchange of ideas among workers in mechanics • an effective method of bringing new results quickly to the public • an informal vehicle for the discussion • of ideas that may still be in the formative stages The field of Mechanics will be understood to encompass the behavior of continua, fluids, solids, particles and their mixtures. Submissions must contain a strong, novel contribution to the field of mechanics, and ideally should be focused on current issues in the field involving theoretical, experimental and/or applied research, preferably within the broad expertise encompassed by the Board of Associate Editors. Deviations from these areas should be discussed in advance with the Editor-in-Chief.