Sökning: "Micro crack detection"

Hittade 2 uppsatser innehållade orden Micro crack detection.

1. 1. Non-linear ultrasound investigation of extended plates

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Författare :Rikard Gunnarsson; [2003]
   Nyckelord :Ultrasonic NDT; Non-linear acoustic testing; Non-linear non-destructive testing; Non-linear Wave Modulation Spectroscopy; Non-linear Elastic Wave Spectroscopy; Micro crack detection;

   Sammanfattning : A non-linear ultrasound non-destructive testing method called Non-linear Wave Modulation Spectroscopy is studied. The method shows the non-linearity of the test specimen and can in that way detect cracks. It is at present non-localizing. LÄS MER

3. 2. Crack detection using Non- Linear Wave Modulation Spectroscopy

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Författare :Kristofer Larsson; Andreas Silverbris; [2003]
   Nyckelord :NWMS; Rotor blade; Micro crack; Excel; Theoretical derivation; Experimental implification;

   Sammanfattning : This report comprises an investigation of the non-linear ultrasonic crack detection method; Non-Linear Wave Modulation Spectroscopy, NWMS. Cracks in test objects were according to the NWMS method detected through their non-linearity. LÄS MER