Imaging of local stiffness of damaged polycrystalline copper : Nondestructive evaluation by resonance ultrasound microscopy

Ogi, Hirotsugu; Hayama, Noritaka; Niho, Hiroki; Hirao, Masahiko; Morishita, Tomohiro

doi:https://doi.org/10.1109/TUFFC.2007.421

Imaging of local stiffness of damaged polycrystalline copper : Nondestructive evaluation by resonance ultrasound microscopy

Ogi, Hirotsugu; Hayama, Noritaka; Niho, Hiroki et al.

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2007, 54(8), 1514-1520

Number of Access:610（2025-11-25 02:19 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/84145

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Title	Imaging of local stiffness of damaged polycrystalline copper : Nondestructive evaluation by resonance ultrasound microscopy
Creator	NRID 1000090252626 1000090252626 researchmap permalink read0042771 read0042771 Scopus Author ID 35563683500 35563683500 ORCID 0000-0002-9602-5194 0000-0002-9602-5194 CreatorName Ogi, Hirotsugu
	CreatorName Hayama, Noritaka
	CreatorName Niho, Hiroki
	NRID 1000080112027 1000080112027 CreatorName Hirao, Masahiko
	CreatorName Morishita, Tomohiro
Description	Hirotsugu Ogi, Noritaka Hayama, Hiroki Niho, Masahiko Hirao, Tomohiro Morishita. Imaging of local stiffness of damaged polycrystalline copper: Nondestructive evaluation by resonance ultrasound microscopy. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2007, 54(8), 1514-1520. https://doi.org/10.1109/TUFFC.2007.421.
Abstract	The distribution of the local stiffness of a polycrystalline copper exposed to a creep test was studied by resonance ultrasound microscopy. The local effective modulus was evaluated from the resonance frequency of the isolated langasite oscillator touching the specimen. Defects appeared predominantly on grain boundaries, and they were clearly visualized by the stiffness microscopy through the significant decrease of the effective stiffness. The stiffness within the grains becomes lower regardless of invisible defects. The stiffness distribution was quantitatively analyzed by the contact model between two anisotropic bodies and by the micromechanics modeling. The microscopic stiffness shows much higher sensitivity to the defects than the macroscopic stiffness.
Publisher	IEEE
Source Title	IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume (Issue)	54(8)
Page	1514-1520
Date of Issued	2007-08
Language	English
Handle URL	https://hdl.handle.net/11094/84145
PISSN	08853010
NCID	AA10453506
Relation.isVersionOf	DOI (Publisher Version) https://doi.org/10.1109/TUFFC.2007.421
Access Rights	open access
CopyRight	© 2007 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
oaire:version	Accepted Manuscript
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 2007, 54(8), p. 1514-1520
DC.title	Imaging of local stiffness of damaged polycrystalline copper : Nondestructive evaluation by resonance ultrasound microscopy
DC.creator	Ogi, Hirotsugu
	Hayama, Noritaka
	Niho, Hiroki
	Hirao, Masahiko
	Morishita, Tomohiro
DC.publisher	IEEE
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2007-08
DC.identifier	https://doi.org/10.1109/TUFFC.2007.421
DC.description	Hirotsugu Ogi, Noritaka Hayama, Hiroki Niho, Masahiko Hirao, Tomohiro Morishita. Imaging of local stiffness of damaged polycrystalline copper: Nondestructive evaluation by resonance ultrasound microscopy. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2007, 54(8), 1514-1520. https://doi.org/10.1109/TUFFC.2007.421.
DCTERMS.abstract	The distribution of the local stiffness of a polycrystalline copper exposed to a creep test was studied by resonance ultrasound microscopy. The local effective modulus was evaluated from the resonance frequency of the isolated langasite oscillator touching the specimen. Defects appeared predominantly on grain boundaries, and they were clearly visualized by the stiffness microscopy through the significant decrease of the effective stiffness. The stiffness within the grains becomes lower regardless of invisible defects. The stiffness distribution was quantitatively analyzed by the contact model between two anisotropic bodies and by the micromechanics modeling. The microscopic stiffness shows much higher sensitivity to the defects than the macroscopic stiffness.
DC.rights	© 2007 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
DC.format	84145
citation_title	Imaging of local stiffness of damaged polycrystalline copper : Nondestructive evaluation by resonance ultrasound microscopy
citation_author	Ogi, Hirotsugu
	Hayama, Noritaka
	Niho, Hiroki
	Hirao, Masahiko
	Morishita, Tomohiro
citation_publisher	IEEE
citation_language	English
citation_date	2007-08
citation_journal_title	IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
citation_volume	54
citation_issue	8
citation_firstpage	1514
citation_lastpage	1520
citation_doi	https://doi.org/10.1109/TUFFC.2007.421
citation_public_url	https://hdl.handle.net/11094/84145

Imaging of local stiffness of damaged polycrystalline copper : Nondestructive evaluation by resonance ultrasound microscopy

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