Application of Finite Elements Method for Improvement of Acoustic Emission Testing

3rd All-Russian Scientific and Practical Conference on Innovations in Non-Destructive Testing

Gerasimov, S.^1 ; Sych, T.^1 ; Kuleshov, V.^2

Department of Structural Mechanics, Siberian Transport University, Novosibirsk, Russia^1

Institute of Non-Destructive Testing, Tomsk Polytechnic University, Tomsk, Russia^2

关键词: Acoustic emission sensors;    Application of finite elements;    Dynamic displacements;    Longitudinal waves;    Physical model;    Physical simulation;    Transversal waves;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/671/1/012017/pdf
DOI  :  10.1088/1742-6596/671/1/012017

来源: IOP

【 摘 要 】

The paper deals with the acoustic emission sensor modeling by means of FEM system COSMOS/M. The following types of acoustic waves in the acoustic emission sensors are investigated: the longitudinal wave and transversal wave. As a material is used piezoelectric ceramics. The computed displacements are compared with physical model under consideration. The results of numerical and physical simulations of the processes of acoustic wave propagation in solebar of the freight-car truck are presented. The fields of dynamic displacements and stresses were calculated for improvement of acoustic emission testing method.