Friday, October 31, 2014

 

 



Soy un nuevo usuario

Olvidé mi contraseña

Entrada usuarios

Lógica Matemáticas Astronomía y Astrofísica Física Química Ciencias de la Vida
Ciencias de la Tierra y Espacio Ciencias Agrarias Ciencias Médicas Ciencias Tecnológicas Antropología Demografía
Ciencias Económicas Geografía Historia Ciencias Jurídicas y Derecho Lingüística Pedagogía
Ciencia Política Psicología Artes y Letras Sociología Ética Filosofía


Amplitude-dependent attenuation of compressive waves in curved granular crystals constrained by elastic guides

1) La descarga del recurso depende de la página de origen
2) Para poder descargar el recurso, es necesario ser usuario
    registrado en Universia


Detalles del recurso

Pertenece a: Caltech Authors  

Descripción: We study the wave propagation in a curved chain of spherical particles constrained by elastic guides under the axial impact of a falling mass. We characterize the force transmission properties of the chain by varying the striker’s mass and the chain’s curvature. Experimental tests demonstrate amplitude-dependent attenuation of compressive waves propagating through the curved chain. In particular, we observe that the curved systems present an improved transmission of small dynamic disturbances relative to that of strong excitations, resulting from the close interplay between the granular particles and the softer elastic medium. We also find that the transmission of the compressive waves through the chains is dependent on the initial curvature imposed to the system. Numerical simulations, based on an approach that combines discrete element and finite element methods, corroborate the experimental results. The findings suggest that hybrid structures composed of granular particles and linear elastic media can be employed as new passive acoustic filtering materials that selectively transmit or mitigate excitations in a desired range of pressure amplitudes.

Autor(es): Yang, Jinkyu -  Dunatunga, Sachith -  Daraio, Chiara - 

Id.: 55231049

Versión: 1.0

Estado: Final

Tipo de recurso: Article  -  PeerReviewed  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

Requerimientos técnicos:  Browser: Any - 

Relación: [References] http://resolver.caltech.edu/CaltechAUTHORS:20120430-110648937
[References] http://authors.library.caltech.edu/30401/

Fecha de contribución: 01-may-2012

Contacto:

Localización:
* Yang, Jinkyu and Dunatunga, Sachith and Daraio, Chiara (2012) Amplitude-dependent attenuation of compressive waves in curved granular crystals constrained by elastic guides. Acta Mechanica, 223 (3). pp. 549-562. ISSN 0001-5970 http://resolver.caltech.edu/CaltechAUTHORS:20120430-110648937


Otros recursos del mismo autor(es)

  1. Fabrication Methods for Adaptive Deformable Mirrors Previously, it was difficult to fabricate deformable mirrors made by piezoelectric actuators. This i...
  2. Geometry-Induced Mechanical Properties of Carbon Nanotube Foams Carbon nanotube (CNT) foams have unmatched energy absorption properties derived from their complex h...
  3. Dynamics of periodic mechanical structures containing bistable elastic elements: From elastic to solitary wave propagation We investigate the nonlinear dynamics of a periodic chain of bistable elements consisting of masses ...
  4. Effect of fluid medium on mechanical behavior of carbon nanotube foam This study reports the constitutive response and energy absorption capabilities of fluid-impregnated...
  5. A nonlocal dense granular flow model implemented in the material point method A nonlocal model for dense granular flow is implemented in the material point method (MPM), an exten...

Otros recursos de la misma colección

  1. Nier Receives 1992 Bowie Medal Alfred O.C. Nier was awarded the 1992 William Bowie Medal for outstanding contributions to fundament...
  2. Response It is a great honor for me to receive the Medal of the Seismological Society of America, but at the ...
  3. The State of Stress in the Earth's Lithosphere The state and the magnitude of stress in the Earth's lithosphere have an important bearing on variou...
  4. Shock-induced effects in calcite from Cactus Crater Shock metamorphism of calcite from coralline limestone samples retrieved from a borehole drilled int...
  5. Thirteenth Award of the Medal of the Seismological Society of America The MEDAL OF THE SEISMOLOGICAL SOCIETY OF AMERICA was established as Article XII of the Constitution...

Valoración de los usuarios

No hay ninguna valoración para este recurso.Sea el primero en valorar este recurso.
 

Busque un recurso