Sunday, December 21, 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. Local to Extended Transitions of Resonant Defect Modes We study the localized modes created by introducing a resonant defect in a mechanical lattice. We fi...
  2. Granular acoustic switches and logic elements Electrical flow control devices are fundamental components in electrical appliances and computers; s...
  3. Acoustic Fresnel lenses with extraordinary transmission We investigate numerically and experimentally highly efficient acoustic lenses based on the principl...
  4. Fabrication Methods for Adaptive Deformable Mirrors Previously, it was difficult to fabricate deformable mirrors made by piezoelectric actuators. This i...
  5. Geometry-Induced Mechanical Properties of Carbon Nanotube Foams Carbon nanotube (CNT) foams have unmatched energy absorption properties derived from their complex h...

Otros recursos de la misma colección

  1. There's Plenty of Room at the Bottom: An Invitation to Enter a New Field of Physics I imagine experimental physicists must often look with envy at men like Kamerlingh Onnes, who discov...
  2. Theoretical predictions for hot-carrier generation from surface plasmon decay Decay of surface plasmons to hot carriers finds a wide variety of applications in energy conversion,...
  3. Plate tectonics before 2.0 Ga: Evidence from paleomagnetism of cratons within supercontinent Nuna Laurentia, the core of Paleo- to Mesoproterozoic supercontinent Nuna, has remained largely intact si...
  4. Updated Spitzer Emission Spectroscopy of Bright Transiting Hot Jupiter HD 189733b We analyze all existing secondary eclipse time series spectroscopy of hot Jupiter HD 189733b acquire...
  5. Spitzer/Infrared Spectrograph Investigation of MIPSGAL 24 μm Compact Bubbles: Low-resolution Observations We present Spitzer/InfraRed Spectrograph (IRS) low-resolution observations of 11 compact circumstell...

Valoración de los usuarios

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

Busque un recurso