利用建筑材料中的导波传播识别应变梯度弹性的构成参数

IF 1.9 4区工程技术 Q3 MECHANICS

Mechanics Research Communications Pub Date : 2024-05-21 DOI:10.1016/j.mechrescom.2024.104292

Giuseppe Rosi , Nicolas Bochud , Vu-Hieu Nguyen , Nicolas Auffray

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引用次数: 0

摘要

在这项工作中，我们介绍了一种识别程序，用于对建筑材料的应变梯度弹性（SGE）构成参数进行数值评估。其主要思路是测量在建筑板中传播的导波的频散图，然后通过求解逆问题，拟合 SGE 模型的响应，检索均质等效材料的构成参数。在本论文中，我们以六边形蜂窝晶格为案例，对这一程序进行了测试。在此仅从数值角度对这种方法进行研究，其优势在于它也可随时应用于实验环境。

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Identification of the constitutive parameters of strain gradient elasticity using guided wave propagation in architectured materials

In this work we introduce an identification procedure for the numerical assessment of the constitutive parameters of strain gradient elasticity (SGE) for architectured materials. The key idea is to measure the dispersion diagram of guided waves propagating in an architectured plate and then, by solving an inverse problem, to retrieve the constitutive parameters of the homogeneous equivalent material by fitting the response of the SGE model. In the present contribution this procedure is tested in the case study of a hexagonal honeycomb lattice. The strength of such approach, which is investigated here from a numerical viewpoint only, is that it could also be readily applied in an experimental setting.

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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.