By T. C. T. Ting (auth.), Tsung-Tsong Wu, Chien-Ching Ma (eds.)
Rapid development of the cellular conversation marketplace has caused large examine at the bulk in addition to floor acoustic wave units within the final decade. a variety of vital effects at the modeling and simulation of movie Bulk Acoustic Resonator (FBAR) and Layered observed units have been pronounced lately. the opposite contemporary enhance of acoustic waves in solids is the so-called phononic crystals or phononic band-gap fabrics. Analogous to the band-gap of sunshine in photonic crystals, acoustic waves in periodic elastic constructions additionally convey band-gap. vital purposes of phononic band hole fabrics can in all probability be chanced on with making a vibration unfastened setting in microstructures, and layout of complicated acoustic frequency filter out, and so on. as well as the wave electronics and phononic crystals, to facilitate the rising wishes within the quantitative nondestructive overview of fabrics, waves in anisotropic solids and/or electro-, magneto- interplay difficulties additionally regained a lot consciousness lately. subject matters handled contain: Waves in piezoelectric crystals; Simulation of complicated BAW and observed units; research of band gaps in phononic constructions; Experimental research of phononic constructions; Waves in multilayered media;Waves in anisotropic solids and/or electro-, magneto-interaction problems.
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Additional info for IUTAM Symposium on Recent Advances of Acoustic Waves in Solids: Proceedings of the IUTAM Symposium on Recent Advances of Acoustic Waves in Solids, Taipei, Taiwan, May 25-28, 2009
Example text
1) We include into consideration the non-zero extra entropy flux [9] K = − θ −1ηφɺ − θ −1ςξɺ. 2) It can be checked that the dissipation inequality in the isothermal case reduces to (τ − η x ) φɺ + (ξ − ς x ) ψɺ ≥ 0. 4) where m is a coefficient. The latter two evolution equations express the duality between internal variables: one internal variable is driven by another one and vice versa. The simplest free energy dependence is a quadratic function [10] W* = ρ0 c 2 2 u x2 + Aφ u x + 1 2 1 2 1 Bφ + Cφx + Dψ 2 , 2 2 2 where A, B C, D, and c are material constants.
Mater. Phys. Mech. 7 9-16 (2004). Generation and Propagation of Anti-Plane Surface Waves on a Body with Depth-Dependent Properties Jan D. edu Abstract. The generation and propagation of anti-plane surface waves on an inhomogeneous half-space of depth dependent shear modulus and mass density, is discussed in this paper. The radiation of surface waves an anti-plane line load is analyzed by an application of the reciprocity theorem. Next the governing equation for free surface waves is reformulated in a form that is amenable to a surface wave solution in the high frequency range.
25, Methuen and Co. , London (1962). : Waves in Layered Media, p. 193-199, Academic Press, New York, (1960). , and Kiselev A. , Shear horizontal waves in transversely inhomogeneous plates. Wave Motion 45 605-615 (2008). : Existence and spectral properties of shear horizontal surface acoustic waves in vertically periodic half spaces. Proc. Roy. Soc. A 465 1489-1511 (2009). : Reciprocity of Elastodynamics, Cambridge University Press, Cambridge, UK (2003). jp Abstract. Resonance ultrasound microscopy is developed for quantitatively measuring local Young’s modulus of solid surfaces, using monocrystal langasite (La3Ga5SiO14) as a probing oscillator.