Amplitude-modulated acoustic radiation force experienced by elastic and viscoelastic spherical shells in progressive waves - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Ultrasonics Année : 2006

Amplitude-modulated acoustic radiation force experienced by elastic and viscoelastic spherical shells in progressive waves

Résumé

The dynamic acoustic radiation force resulting from a dual-frequency beam incident on spherical shells immersed in an inviscid fluid is examined theoretically in relation to their thickness and the contents of their interior hollow regions. The theory is modified to include a hysteresis type of absorption inside the shells’ material. The results of numerical calculations are presented for stainless steel and absorbing lucite (PolyMethyMethacrylAte) shells with the hollow region filled with water or air. Significant differences occur when the interior fluid inside the hollow region is changed from water to air. It is shown that the dynamic radiation force function Yd deviates from the static radiation force function Yp when the modulation size parameter δx = ∣x2 − x1∣ (x1 = k1a, x2 = k2a, k1 and k2 are the wave vectors of the incident ultrasound waves, and a is the outer radius of the shell) starts to exceed the width of the resonance peaks in the Yp curves.
Fichier principal
Vignette du fichier
Mitri2006.pdf (268.13 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-00105784 , version 1 (16-06-2022)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

F.G. Mitri, Zine El Abiddine E.A. Fellah. Amplitude-modulated acoustic radiation force experienced by elastic and viscoelastic spherical shells in progressive waves. Ultrasonics, 2006, 44 (3), pp.287-296. ⟨10.1016/j.ultras.2006.03.001⟩. ⟨hal-00105784⟩
34 Consultations
32 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More