scholarly journals Detection of configuration of surface cracks at inside surface of a pipe from outside surface by DC potential drop method.

1988 ◽  
Vol 37 (419) ◽  
pp. 964-970 ◽  
Author(s):  
Makoto HAYASHI ◽  
Masahiro OHTAKA ◽  
Terunobu KOIKE ◽  
Norimasa CHIBA ◽  
Koichi MATSUMOTO
Keyword(s):  
Potential Drop ◽  
Inside Surface ◽  
Surface Cracks ◽  
Drop Method ◽  
Dc Potential

An Efficient Numerical Scheme for Sizing of Cavity Defect in Metallic Foam From Signals of DC Potential Drop Method

2014 ◽  
Vol 50 (2) ◽  
pp. 125-128 ◽  
Author(s):  
Xiaojuan Wang ◽  
Shejuan Xie ◽  
Zhenmao Chen
Keyword(s):  
Numerical Scheme ◽  
Potential Drop ◽  
Metallic Foam ◽  
Drop Method ◽  
Dc Potential

NDT of Cavity Defect in Metallic Plate Using dc Potential Drop Method

2018 ◽  
Vol 46 (2) ◽  
pp. 20170092
Author(s):  
Xiaojuan Wang ◽  
Wenlu Cai ◽  
Zhenmao Chen
Keyword(s):  
Potential Drop ◽  
Metallic Plate ◽  
Drop Method ◽  
Dc Potential

DC potential drop method for evaluating material degradation

2004 ◽  
Vol 18 (8) ◽  
pp. 1368-1374 ◽  
Author(s):  
Chang-Sung Seok ◽  
Bong Kook Bae ◽  
Jae-Mean Koo
Keyword(s):  
Potential Drop ◽  
Material Degradation ◽  
Drop Method ◽  
Dc Potential

scholarly journals Surface Crack Configuration Detection System by DC Potential Drop Method.

1997 ◽  
Vol 46 (8) ◽  
pp. 989-995 ◽  
Author(s):  
Makoto HAYASHI ◽  
Masahiro OHTAKA ◽  
Akisuke NARUSE
Keyword(s):  
Surface Crack ◽  
Detection System ◽  
Potential Drop ◽  
Drop Method ◽  
Crack Configuration ◽  
Dc Potential

scholarly journals Crack Detection and Crack Length Measurement with the DC Potential Drop Method–Possibilities, Challenges and New Developments

2020 ◽  
Vol 10 (23) ◽  
pp. 8559
Author(s):  
Jürgen Bär
Keyword(s):  
Crack Length ◽  
Crack Detection ◽  
Potential Drop ◽  
General Information ◽  
Ambient Atmosphere ◽  
New Developments ◽  
Drop Method ◽  
Notched Specimens ◽  
Dc Potential ◽  
Crack Length Measurement

The direct current potential drop method (DCPDM) is widely used to determine the crack length in fatigue experiments. In practice, some special features of this method must be considered. Aside from general information on the experimental setup and calibration, some special features of the method, such as the influence of the ambient atmosphere and the application of the method to ferromagnetic materials, are presented and discussed. In addition, with the multiple potential drop measurement, a method is presented which improves the resolution of the DCPDM for detection of cracks and allows to determine crack initiation sites. The capabilities provided by this method are demonstrated on the basis of measurements undertaken on notched round bars and single edged notched specimens.

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