Open AccessNonlinear interaction between ultrasound and solid rough interface
Author(s) -
Xiao Qiong Qi,
Jun Wang,
Xiaojun Guo,
Dong Zhang
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.094301
Subject(s) - mesoscopic physics , nonlinear system , ultrasonic sensor , gaussian , interface (matter) , basis (linear algebra) , materials science , computer science , acoustics , physics , condensed matter physics , mathematics , composite material , contact angle , geometry , sessile drop technique , quantum mechanics
The interaction of ultrasound with an interface between two rough surfaces in contact has become a quite popular topic in many areas related to non-destructive evaluation (NDE). We proposed a theory of ultrasonic nonlinear interaction between some random rough elastic interfaces. The model of random elastic-contact interface is first described, and then the nonlinear ultrasonic interaction of interfaces with stress-strain relationship is studied, by using different models including linear simplified model, exponential model, and Gaussian model. Results of numerical simulations and experiments demonstrate that the Gaussian model is more suitable for describing the solid rough interfaces. This study provides an explanation of the ultrasonic interaction on mesoscopic level, which is a theoretical basis for practical application to detect cracks, defects and injuries in industrial ultrasonic NDE.