Effect of elastic anisotropy on contact stiffness in resonance ultrasound microscopy

Tian, Jiayong; Ogi, Hirotsugu; Hirao, Masahiko

Applied Physics Letters, 2005, 87(20), 204107-1-204107-3

Number of Access:322（2025-11-25 02:18 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/84206

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Title
Effect of elastic anisotropy on contact stiffness in resonance ultrasound microscopy
Creator
CreatorName
Tian, Jiayong
NRID
1000090252626 1000090252626
researchmap permalink
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Scopus Author ID
35563683500 35563683500
ORCID
0000-0002-9602-5194 0000-0002-9602-5194
CreatorName
Ogi, Hirotsugu
NRID
1000080112027 1000080112027
CreatorName
Hirao, Masahiko
Description
Tian J., Ogi H., Hirao M. "Effect of elastic anisotropy on contact stiffness in resonance ultrasound microscopy", Applied Physics Letters, 87(20), 204107 (2005) https://doi.org/10.1063/1.2131201.
Abstract
The classical Hertzian-contact theory for an isotropic material has been adopted to simplify quantitative evaluation of local elastic modulus by resonance-ultrasound microscopy (RUM). However, the validity of this simplified model must be confirmed because most materials show elastic anisotropy in small regions. This study investigates the influence of the elastic anisotropy of the tip and the specimen on the determination of the local elastic modulus in RUM by introducing the Hertzian-contact stiffness for orthorhombic materials. Numerical results reveal that specimen anisotropy significantly affects the contact stiffness and the quantitative evaluation of local elastic modulus even for specimens with weak anisotropy when we consider the anisotropy of the oscillator tip in RUM. © 2005 American Institute of Physics.
Publisher
American Institute of Physics
Source Title
Applied Physics Letters
Volume (Issue)
87(20)
Page
204107-1-204107-3
Date of Issued
2005-11-09
Language
English
Handle URL
https://hdl.handle.net/11094/84206
PISSN
00036951
eISSN
10773118
NCID
AA00543431
AA11868096
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1063/1.2131201
Access Rights
open access
CopyRight
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Applied Physics Letters, 87(20), 204107 (2005) and may be found at https://doi.org/10.1063/1.2131201.
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Version of Record
Category
学術雑誌論文 Journal Article