TY - JOUR
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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U2 - 10.1299/jsmea.41.372
DO - 10.1299/jsmea.41.372
M3 - Article
AN - SCOPUS:0032128661
SN - 1340-8046
VL - 41
SP - 372
EP - 379
JO - JSME International Journal, Series A: Mechanics and Material Engineering
JF - JSME International Journal, Series A: Mechanics and Material Engineering
IS - 3
ER -