Analysis of direct current potential difference in a multiple-cracked material

Naoya Tada; Yoshihiko Hayashi; Takayuki Kitamura; Ryuichi Ohtani

doi:10.1299/kikaia.63.2235

Analysis of direct current potential difference in a multiple-cracked material

Naoya Tada, Yoshihiko Hayashi, Takayuki Kitamura, Ryuichi Ohtani

Research output: Contribution to journal › Article › peer-review

Abstract

The electric field in a conductive material with multiple circular cracks is analyzed by means of the crack-flow modification method (CFMM). It is found that the increase in the potential difference of the cracked material normalized by the potential difference without cracks, ΔV/V₀, is in proportion to the product of the effective volumetric crack density and the mean of the cubed crack radius, n_eff[r³]_m. This universal relationship is also valid for multiple semi-circular cracks on the surface of the material and gives the physical meaning of damage detected by the direct current electrical potential method.

Original language	English
Pages (from-to)	2235-2242
Number of pages	8
Journal	Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume	63
Issue number	614
DOIs	https://doi.org/10.1299/kikaia.63.2235
Publication status	Published - 1997
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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abstract = "The electric field in a conductive material with multiple circular cracks is analyzed by means of the crack-flow modification method (CFMM). It is found that the increase in the potential difference of the cracked material normalized by the potential difference without cracks, ΔV/V0, is in proportion to the product of the effective volumetric crack density and the mean of the cubed crack radius, neff[r3]m. This universal relationship is also valid for multiple semi-circular cracks on the surface of the material and gives the physical meaning of damage detected by the direct current electrical potential method.",

author = "Naoya Tada and Yoshihiko Hayashi and Takayuki Kitamura and Ryuichi Ohtani",

year = "1997",

doi = "10.1299/kikaia.63.2235",

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journal = "Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A",

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AU - Tada, Naoya

AU - Hayashi, Yoshihiko

AU - Kitamura, Takayuki

AU - Ohtani, Ryuichi

PY - 1997

Y1 - 1997

N2 - The electric field in a conductive material with multiple circular cracks is analyzed by means of the crack-flow modification method (CFMM). It is found that the increase in the potential difference of the cracked material normalized by the potential difference without cracks, ΔV/V0, is in proportion to the product of the effective volumetric crack density and the mean of the cubed crack radius, neff[r3]m. This universal relationship is also valid for multiple semi-circular cracks on the surface of the material and gives the physical meaning of damage detected by the direct current electrical potential method.

AB - The electric field in a conductive material with multiple circular cracks is analyzed by means of the crack-flow modification method (CFMM). It is found that the increase in the potential difference of the cracked material normalized by the potential difference without cracks, ΔV/V0, is in proportion to the product of the effective volumetric crack density and the mean of the cubed crack radius, neff[r3]m. This universal relationship is also valid for multiple semi-circular cracks on the surface of the material and gives the physical meaning of damage detected by the direct current electrical potential method.

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JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A

JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A

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ER -

Analysis of direct current potential difference in a multiple-cracked material

Abstract

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