کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
783888 | 1465357 | 2012 | 5 صفحه PDF | دانلود رایگان |
In the line of previous works studying the possibility to associate quasi-particles with surface acoustic waves (SAWs) on deformable solids, here we consider perturbations caused by a small elastic nonlinearity. More specifically, the problem considered deals with surface acoustic waves of the Bleustein–Gulyaev (BG) piezoelectric type, allowing for the existence of a transverse (SH) elastic displacement coupled to a quasi-electrostatic electric field. It is shown that the resulting quasi-particle has a Newtonian inertial, conservative, motion parallel to the limiting surface, with both velocity and “mass” perturbed by the elastic nonlinearity as compared to the standard BG case.
► We study the influence of weak elastic nonlinearities on surface quasi-particles.
► Quasi-particles here are associated with surface acoustic waves.
► The case considered is that of piezoelectric shear-horizontal surface waves.
► Only the “mass” of the quasi-particles is particularly perturbed.
Journal: International Journal of Non-Linear Mechanics - Volume 47, Issue 1, January 2012, Pages 67–71