TY - GEN
T1 - Potential difference around semi-elliptical crack on the outer surface of pipe for non-destructive evaluation of crack by DC-PDM
AU - Tada, Naoya
AU - Uchida, Makoto
AU - Maeda, Hiroki
PY - 2010/12/1
Y1 - 2010/12/1
N2 - Remaining life evaluation has been attracting much attention to secure the safety of aged power generating plants. A crack on the outer surface of pipe is a typical kind of damage observed in aged plants. Accurate information of crack largely helps the remaining life evaluation based on fracture mechanics. The direct-current potential difference method (DCPDM) is known as one of the suitable non-destructive techniques to monitor the initiation and growth of crack in the pipes. Usually, numerical analyses are necessary to evaluate the geometry of crack from the potential difference because no analytical solution was given in most cases. In this study, a solution of the potential difference around a semi-elliptical crack on the outer surface of pipe is presented and the result is compared with that obtained by finite element analysis.
AB - Remaining life evaluation has been attracting much attention to secure the safety of aged power generating plants. A crack on the outer surface of pipe is a typical kind of damage observed in aged plants. Accurate information of crack largely helps the remaining life evaluation based on fracture mechanics. The direct-current potential difference method (DCPDM) is known as one of the suitable non-destructive techniques to monitor the initiation and growth of crack in the pipes. Usually, numerical analyses are necessary to evaluate the geometry of crack from the potential difference because no analytical solution was given in most cases. In this study, a solution of the potential difference around a semi-elliptical crack on the outer surface of pipe is presented and the result is compared with that obtained by finite element analysis.
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U2 - 10.1115/PVP2010-25286
DO - 10.1115/PVP2010-25286
M3 - Conference contribution
AN - SCOPUS:80155187522
SN - 9780791849248
T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
SP - 215
EP - 222
BT - ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010
T2 - ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010
Y2 - 18 July 2010 through 22 July 2010
ER -