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Updated: Jun 6, 2025

Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy
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在多晶材料中对超声波相位速度和衰减的纵向和剪切波的数值估计

Vincent Dorval1, Nicolas Leymarie1, Alexandre Imperiale1

  • 1Université Paris-Saclay, CEA, List, F-91190, Palaiseau, France.

Ultrasonics
|December 3, 2024
PubMed
概括

这项研究使用有限元素分析模拟了多晶体中的超声波传播. 有限元法 (FEM) 准确地预测了纵向和剪切波的波速和衰减,有助于分析模型的开发.

关键词:
衰减减弱化 减弱 减弱微观结构的微观结构散射是一种散射.超声波超声波的使用方法

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Deriving the Speed of Sound in a Liquid01:09

Deriving the Speed of Sound in a Liquid

As with waves on a string, the speed of sound or a mechanical wave in a fluid depends on the fluid's elastic modulus and inertia. The two relevant physical quantities are the bulk modulus and the density of the material. Indeed, it turns out that the relationship between speed and the bulk modulus and density in fluids is the same as that between the speed and the Young's modulus and density in solids.
The speed of sound in fluids can be derived by considering a mechanical wave...
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