Incoherent waves in fluid-saturated sintered granular systems: Scattering phenomena

[+] Author and Article Information
Ibrahim Gueven

Institute of Mechanics, Ruhr-University Bochum, Universitätsstr. 150, D-44 801 Bochum, Germany

Stefan Luding

Multi-Scale Mechanicsa/MESA, ET, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands

Holger Steeb

Institute of Applied Mechanics (CE), University of Stuttgart, Pfaffenwaldring 7, D-70 569 Stuttgart, Germany

1Corresponding author.

ASME doi:10.1115/1.4037701 History: Received December 28, 2016; Revised August 05, 2017


The incoherent transport of ultrasound waves in water-saturated sintered glass bead packings is experimentally investigated. The spectral energy density of scattered high-frequency waves is explained by a diffusion wave equation. Immersion broadband transducers with central frequencies of 1 MHz are positioned at a distance of 73mm to the porous sample. The diffusion coefficient and quality factor are predicted from a diffusion approximation of the time-dependent intensity curve to the ensemble averaged measurement data. From the diffusion coefficient we deduce a mean-free path for scattering events at l* = 0:87 ± 0:03mm close to the range of particle diameters of the samples (1:0 < dp < 1:2 mm). Results are in good agreement with observations from Jia et al. [1] observed for non-sintered and consolidated bead packings (0:6 < dp < 0:8 mm). The low quality factor Q = 190 ± 10 indicates a high-amount of intrinsic damping of the scattered waves although water was used as saturating and coupling fluid.

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.






Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In