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- since 1996 -

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Technical Discussions
junho
NDT Inspector,
KOREA Material INSPECTION, South Korea, Joined Oct 2009, 21

junho

NDT Inspector,
KOREA Material INSPECTION,
South Korea,
Joined Oct 2009
21
14:22 Feb-19-2010
creeping wave methode

hi all

I wondering, Is ASME explaining creeping wave method
for ID deadzone inspect

thank you

    
 
 
Carlos Correia
R & D, - -
UCV & EGROUP, Venezuela, Joined Oct 2008, 120

Carlos Correia

R & D, - -
UCV & EGROUP,
Venezuela,
Joined Oct 2008
120
19:05 Feb-19-2010
Re: creeping wave methode
In Reply to junho at 14:22 Feb-19-2010 (Opening).

Hello Junho, CW Method is still beyond ASME considerations. You should to check the 2007 edition. But you can write to Ed Ginzel or to Mark Davis. They are part of this forum and is sure they know...

    
 
 
Ed Ginzel
R & D, -
Materials Research Institute, Canada, Joined Nov 1998, 1252

Ed Ginzel

R & D, -
Materials Research Institute,
Canada,
Joined Nov 1998
1252
19:09 Feb-19-2010
Re: creeping wave methode
In Reply to junho at 14:22 Feb-19-2010 (Opening).

Mr Park
ASME does not describe the "so-called" creeping wave. When you examine the arrival times of the signals when peaking a small depth notch on the opposite wall it will be seen that the detection is actually achieved by the shear headwave. This can be done using a refracted compression mode at some angle between about 70° to 80°
Good description can be found on the application of the techniques in general on http://www.ndt.net/article/pow1297/schmid/schmid.htm

    
 
 
andrew cunningham
NDT Inspector
Canada, Joined Jun 2008, 238

andrew cunningham

NDT Inspector
Canada,
Joined Jun 2008
238
23:55 Feb-22-2010
Re: creeping wave methode
In Reply to junho at 14:22 Feb-19-2010 (Opening).

Download Mode Change, Creeping Wave or Corner Trap???

Hi Junho

Please find attachment that may explain acoustics of an ID connected reflector.
I hope it helps you.

Yours sincerely
Andrew
    
 
 

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