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

Naoya Tada; Yoshihito Hayashi; Takayuki Kitamura; Ryuichi Ohtani

doi:10.1299/jsmea.41.372

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

Naoya Tada, Yoshihito Hayashi, Takayuki Kitamura, Ryuichi Ohtani

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

6 Citations (Scopus)

Abstract

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

Original language	English
Pages (from-to)	372-379
Number of pages	8
Journal	JSME International Journal, Series A: Mechanics and Material Engineering
Volume	41
Issue number	3
DOIs	https://doi.org/10.1299/jsmea.41.372
Publication status	Published - 1998
Externally published	Yes

Keywords

Crack-Flow Modification Method
Direct Current
Electric Potential Difference
Multiple Cracks
Nondestructive Inspection
Numerical Analysis

ASJC Scopus subject areas

Engineering(all)

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10.1299/jsmea.41.372

Cite this

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title = "Analysis of direct current potential difference in a multiple-cracked material",

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

keywords = "Crack-Flow Modification Method, Direct Current, Electric Potential Difference, Multiple Cracks, Nondestructive Inspection, Numerical Analysis",

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

year = "1998",

doi = "10.1299/jsmea.41.372",

language = "English",

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T1 - Analysis of direct current potential difference in a multiple-cracked material

AU - Tada, Naoya

AU - Hayashi, Yoshihito

AU - Kitamura, Takayuki

AU - Ohtani, Ryuichi

PY - 1998

Y1 - 1998

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

KW - Crack-Flow Modification Method

KW - Direct Current

KW - Electric Potential Difference

KW - Multiple Cracks

KW - Nondestructive Inspection

KW - Numerical Analysis

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DO - 10.1299/jsmea.41.372

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JO - JSME International Journal, Series A: Mechanics and Material Engineering

JF - JSME International Journal, Series A: Mechanics and Material Engineering

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

Abstract

Keywords

ASJC Scopus subject areas

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