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

Found 3 essays containing the words non-linear non-destructive testing.

  1. 1. Quality Control in Aluminium Profiles : Non-destructive Methods using Non-linear Ultrasonic

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Viktor Svensson; Robin Raymundsson; [2023]
    Keywords : Acoustic; defect; detection; harmonic; Akustisk; defekt; detektion; överton;

    Abstract : When aluminium profiles are manufactured, defects may arise, especially when theprofiles are manufactured through extrusion. During the extrusion process, thesedefects occur on parts of the extruded material because of contaminates that needto be found. READ MORE

  3. 2. 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

  4. 3. Crack Detection using Non-linear and Dissipative Acoustics

    University essay from 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