Three Nonlinear NDE Techniques On Three Diverse Objects
|Document type:||Conference Papers|
|Author(s):||Kristian Haller, Claes Hedberg|
|Title:||Three Nonlinear NDE Techniques On Three Diverse Objects|
|Translated title:||Tre olinjära oförstörandeprovningsmetoder applicerade på tre skiljda objekt|
|Conference name:||17th International Symposium on Nonlinear Acoustics|
|City:||State College, Pensylvania|
|Organization:||Blekinge Institute of Technology|
|Department:||School of Engineering - Dept. of Mechanical Engineering (Sektionen för teknik – avd. för maskinteknik)
School of Engineering S- 371 79 Karlskrona, School of Engineering S- 371 79 Karlskrona
+46 455 38 50 00
|Abstract:||Non-Destructive Evaluation has been carried out on three different test objects, with three different methods based on exhibits of slow dynamics and nonlinear effects.
The three diverse objects were cast iron, ceramic semi-conductors on circuit boards, and rubber. The three approaches were Higher Harmonics detection (HH), Nonlinear Wave Modulation Spectroscopy (NWMS), and Slow Dynamics (SD). For all of the objects the three approaches were tried. The results showed that for each of the objects, a different method worked the best. The cast iron worked best with nonlinear wave modulation, the ceramic semi-conductors worked well with the higher harmonics detection, while the rubber showed best results with slow dynamics.
|Subject:||Mechanical Engineering\Structural Dynamics|
|Keywords:||Nondestructive testing, nonlinear acoustics, higher harmonics, nonlinear wave modulation spectroscopy, slow dynamics.|