Essays about: "Non-linear non-destructive testing"

Found 2 essays containing the words Non-linear non-destructive testing.

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

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

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

    Abstract : 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. READ MORE

  2. 2. Crack Detection using Non-linear and Dissipative Acoustics

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik; Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Daniel Carldén; Daniel Thuresson; [1998]
    Keywords : Non-linear acoustics; Non-linear parameter; Burger s equation; Bessel-Fubini; Fay; Mendousse; Hedberg; Non-destructive testing NDT ; Non-destructive Evaluation NDE ; crack detection.;

    Abstract : A theoretical model for identification of acoustical non-linearity using Burger's equation was implemented in a MATLAB program. The program identified both the non-linearity parameter and the distance from the signal source. Tests were performed in order to verify the theories. READ MORE