Acoustic Wave Propagation at a Fluid-Micropolar Boundary
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概要
- 論文の詳細を見る
In contrast to a homogeneous isotropic elastic medium with only two elastic constants, a linear elastic micropolar solid is characterized by six independent constants. The solid may consist of particles uniformly distributed in a host matrix. Thus, six different types of wave propagation with four distinct speeds can be found in the dispersion equations. The four distinct speeds are associated with one nondispersively longitudinal displacement wave; one dispersively longitudinal microrotation wave; and two dispersively transverse waves in the presence of couple-stress. In this work, we illustrate the reflected and transmitted fields of an incident acoustic wave propagating at the fluid-micropolar interface. The result is compared to the fluid-isotropic case. It is observed that, due to the mode conversion in the micropolar medium, the micropolar medium should instigate a reducible reflected acoustic wave.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 1998-01-15
著者
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Hsia Shao-yi
Department Of Mechanical Engineering National Sun Yat-sen University
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Yang Shiuh-kuang
Department Of Mechanical Engineering National Sun Yat-sen University
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Yang Shiuh-Kuang
Department of Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan, R.O.C
関連論文
- Reflection and Transmission of the Longitudinal Wave at an Achiral-Chiral Boundary
- Wave Motions in an Effective Chiral Composite: Dispersion Equations and Elastic Moduli
- Mechanical Activity of a Chiral Slab Sandwiched between Achiral Half-Spaces
- Acoustic Wave Propagation at a Fluid-Micropolar Boundary
- Propagation of Transverse Waves in Elastic-Micropolar Porous Semispaces
- Propagation of Longitudinal Waves in Microporous Slab Sandwiched between Elastic Half-Spaces
- Longitudinal Plane Wave Propagation in Elastic-Micropolar Porous Media
- Reflection and Transmission of the Longitudinal Wave at an Achiral-Chiral Boundary
- Acoustic Wave Propagation at a Fluid-Micropolar Boundary