Analysis of interaction of multiple cracks in a direct current field and nondestructive evaluation

H. Liu; M. Saka; H. Abé; I. Komura; H. Sakamoto

doi:10.1115/1.2791071

Analysis of interaction of multiple cracks in a direct current field and nondestructive evaluation

H. Liu, M. Saka, H. Abé, I. Komura, H. Sakamoto

ENG - Finemechanics

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

14 Citations (Scopus)

Abstract

A method of analysis is proposed for nondestructive evaluation of multiple cracks by means of the d.c. (direct current) potential drop technique. Two and three-dimensional multiple cracks are treated. A methodology for considering interaction of cracks based on the equation for an isolated crack is given to calculate the potential drop between both sides of a crack in multiple cracking in a plate. The inverse problem to evaluate the crack depth is analyzed by comparing the potential drop calculated in this way with the measurement. It is shown that the evaluated crack depth is in good agreement with the actual one.

Original language	English
Pages (from-to)	468-475
Number of pages	8
Journal	Journal of Applied Mechanics, Transactions ASME
Volume	66
Issue number	2
DOIs	https://doi.org/10.1115/1.2791071
Publication status	Published - 1999 Jun

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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AU - Abé, H.

AU - Komura, I.

AU - Sakamoto, H.

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AB - A method of analysis is proposed for nondestructive evaluation of multiple cracks by means of the d.c. (direct current) potential drop technique. Two and three-dimensional multiple cracks are treated. A methodology for considering interaction of cracks based on the equation for an isolated crack is given to calculate the potential drop between both sides of a crack in multiple cracking in a plate. The inverse problem to evaluate the crack depth is analyzed by comparing the potential drop calculated in this way with the measurement. It is shown that the evaluated crack depth is in good agreement with the actual one.

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Analysis of interaction of multiple cracks in a direct current field and nondestructive evaluation

Abstract

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