Scattering of harmonic anti-plane shear waves by an interface crack in magneto-electro-elastic composites

2005 ◽  
Vol 26 (1) ◽  
pp. 17-26 ◽  
Author(s):  
Zhou Zhen-gong ◽  
Wang Biao
Keyword(s):  
Interface Crack ◽  
Shear Waves ◽  
Plane Shear ◽  
Elastic Composites

scholarly journals Anti-plane shear waves in periodic elastic composites: band structure and anomalous wave refraction

2015 ◽  
Vol 471 (2180) ◽  
pp. 20150152 ◽  
Author(s):  
Sia Nemat-Nasser
Keyword(s):  
Band Structure ◽  
Phase Velocity ◽  
Negative Refraction ◽  
Mass Density ◽  
Shear Waves ◽  
Variable Mass ◽  
Three Dimensional ◽  
Positive Energy ◽  
Plane Shear ◽  
Elastic Composites

For anti-plane shear waves in periodic elastic composites, it is shown that negative energy refraction can be accompanied by positive phase-velocity refraction and positive energy refraction can be accompanied by negative phase-velocity refraction , and that this can happen over a broad range of frequencies. Hence, in general, negative refraction does not necessarily require antiparallel group and phase-velocity vectors. Details are given for layered composites and the results are extended to, and illustrated for, two-dimensional periodic composites, revealing a wealth of information about the refractive characteristics of this class of composites. The composite's unit cell may consist of any number of constituents of any variable mass density and elastic modulus, admitting large discontinuities . A powerful variational-based solution method is used that applies to one-, two- and three-dimensional composites, irrespective of their constituents being homogeneous or heterogeneous. The calculations are direct, accurate and efficient, yielding the band structure, group-velocity, energy-flux and phase-velocity vectors as functions of the frequency and wavevector components, over an entire frequency band.

Transverse surface waves in magneto-elasticity

1966 ◽  
Vol 62 (3) ◽  
pp. 541-545 ◽  
Author(s):  
C. M. Purushothama
Keyword(s):  
Magnetic Field ◽  
Wave Propagation ◽  
Surface Waves ◽  
Elastic Medium ◽  
Uniform Magnetic Field ◽  
Shear Waves ◽  
Plane Shear ◽  
Electrically Conducting ◽  
Velocity Of Propagation

AbstractIt has been shown that uncoupled surface waves of SH type can be propagated without any dispersion in an electrically conducting semi-infinite elastic medium provided a uniform magnetic field acts non-aligned to the direction of wave propagation. In general, the velocity of propagation will be slightly greater than that of plane shear waves in the medium.

Inelastic behaviour of grain skeletons with propagation of plane shear waves

2020 ◽  
pp. 125-128
Author(s):  
Gerd Gudehus ◽  
Iouri Loukachev ◽  
Norbert Pralle
Keyword(s):  
Shear Waves ◽  
Plane Shear ◽  
Inelastic Behaviour

scholarly journals Steering in-plane shear waves with inertial resonators in platonic crystals

2015 ◽  
Vol 106 (22) ◽  
pp. 223502 ◽  
Author(s):  
Younes Achaoui ◽  
André Diatta ◽  
Sébastien Guenneau
Keyword(s):  
Shear Waves ◽  
Plane Shear

Diffraction of anti-plane shear waves by two moving griffith cracks

1984 ◽  
Vol 20 (3) ◽  
pp. 409-421 ◽  
Author(s):  
R.S. Dhaliwal ◽  
B.M. Singh ◽  
J. Rokne
Keyword(s):  
Shear Waves ◽  
Plane Shear

Diffraction of horizontal shear waves by a moving interface crack

1984 ◽  
Vol 54 (1-2) ◽  
pp. 23-34 ◽  
Author(s):  
Y. Nishida ◽  
Y. Shindo ◽  
A. Atsumi
Keyword(s):  
Interface Crack ◽  
Shear Waves ◽  
Horizontal Shear ◽  
Moving Interface

Effective shear modulus of piezoelectric film embedded with square nano-fibers under anti-plane shear waves

2014 ◽  
Vol 115 (15) ◽  
pp. 154315 ◽  
Author(s):  
Ming-Juan Huang ◽  
Xue-Qian Fang ◽  
Xing Zhao ◽  
Jin-Xi Liu ◽  
Wen-Jie Feng
Keyword(s):  
Shear Modulus ◽  
Shear Waves ◽  
Piezoelectric Film ◽  
Plane Shear ◽  
Effective Shear Modulus
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