Parametric excitation of shear waves in soft solids

被引：8

作者：

Mironov, M. A. ^{[1
]}

Pyatakov, P. A. ^{[1
]}

Konopatskaya, I. I. ^{[1
]}

Clement, G. T. ^{[2
,3
]}

Vykhodtseva, N. I. ^{[2
,3
]}

机构：

[1] Russian Acad Sci, NN Andreev Acoust Inst, Moscow 117036, Russia

[2] Brigham & Womens Hosp, Dept Radiol, Boston, MA 02115 USA

[3] Harvard Univ, Sch Med, Boston, MA 02115 USA

来源：

ACOUSTICAL PHYSICS | 2009年 / 55卷 / 4-5期

关键词：

Shear flow - Ultrasonics - Tissue - Shear stress;

D O I：

10.1134/S1063771009040137

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

One of the possible mechanisms that may underlie ultrasound-induced damage of soft solids is discussed. The model of three-wave interaction in a solid is used to consider shear wave generation by a longitudinal sound wave in a solid with a small shear modulus. Numerical estimates are obtained for the excitation threshold of the shear wave in biological tissues. Since the wavelength of ultrasound-generated shear waves is small, the shear stresses may be sufficient to destroy the structure of biological tissue. Results of model experiments are presented.

引用

页码：567 / 574

页数：8

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