Artículo
Transmission and Reflection of Strongly Nonlinear SolitaryWaves at Granular Interfaces
Tichler, A. M.; Gomez, Leopoldo Raimundo
; Upadhyaya, N.; Campman, X.; Nesterenko, V. F.; Vitelli, V.
Fecha de publicación:
23/03/2013
Editorial:
Amer Physical Soc
Revista:
Physical Review Letters
ISSN:
0031-9007
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The interaction of a solitary wave with an interface formed by two strongly nonlinear noncohesive granular lattices displays rich behavior, characterized by the breakdown of continuum equations of motion in the vicinity of the interface. By treating the solitary wave as a quasiparticle with an effective mass, we construct an intuitive (energy- and linear-momentum-conserving) discrete model to predict the amplitudes of the transmitted solitary waves generated when an incident solitary-wave front, parallel to the interface, moves from a denser to a lighter granular hexagonal lattice. Our findings are corroborated with simulations. We then successfully extend this model to oblique interfaces, where we find that the angle of refraction and reflection of a solitary wave follows, below a critical value, an analogue of Snell?s law in which the solitary-wave speed replaces the speed of sound, which is zero in the sonic vacuum.
Palabras clave:
Granular Media
,
Non-Linear Elastic Waves
,
Shock Waves
Archivos asociados
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Identificadores
Colecciones
Articulos(CCT - BAHIA BLANCA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Articulos(IFISUR)
Articulos de INSTITUTO DE FISICA DEL SUR
Articulos de INSTITUTO DE FISICA DEL SUR
Citación
Tichler, A. M.; Gomez, Leopoldo Raimundo; Upadhyaya, N.; Campman, X; Nesterenko, V. F.; Vitelli, V.; Transmission and Reflection of Strongly Nonlinear SolitaryWaves at Granular Interfaces; Amer Physical Soc; Physical Review Letters; 111; 23-3-2013; 480011-480015;
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