Derivation of the nonlinearity parameter B / A of saturated, unconsolidated marine sediments via a statistical approach

H. Lee, E. Noh, W. S. Ohm, O. C. Kwon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Marine sediments are known to exhibit the nonlinearity parameter B/A that is much greater than that of homogeneous fluids and solids. The enormous value of B/A is particularly sensitive to the state of grain contacts. Although there exists a large body of literature that deals with the B/A of marine sediments, few studies have addressed how the random nature of grain contacts affects B/A. Here, we develop a model for the B/A of saturated, unconsolidated marine sediments, which accounts for random grain contacts. The number of contacts per grain and the distribution of contact stress between grains are treated statistically. The quadratic nonlinearity of the equivalent suspension of grains and the interstitial fluid is then combined with the nonlinearity arising from the random Hertzian contacts to produce the effective B/A of marine sediments.

Original languageEnglish
Title of host publicationRecent Developments in Nonlinear Acoustics
Subtitle of host publication20th International Symposium on Nonlinear Acoustics including the 2nd International Sonic Boom Forum
EditorsVictor W. Sparrow, Didier Dragna, Philippe Blanc-Benon
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413320
DOIs
Publication statusPublished - 2015 Oct 28
Event20th International Symposium on Nonlinear Acoustics, ISNA 2015, including the 2nd International Sonic Boom Forum, ISBF 2015 - Ecully, Lyon, France
Duration: 2015 Jun 292015 Jul 3

Publication series

NameAIP Conference Proceedings
Volume1685
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other20th International Symposium on Nonlinear Acoustics, ISNA 2015, including the 2nd International Sonic Boom Forum, ISBF 2015
CountryFrance
CityEcully, Lyon
Period15/6/2915/7/3

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Lee, H., Noh, E., Ohm, W. S., & Kwon, O. C. (2015). Derivation of the nonlinearity parameter B / A of saturated, unconsolidated marine sediments via a statistical approach. In V. W. Sparrow, D. Dragna, & P. Blanc-Benon (Eds.), Recent Developments in Nonlinear Acoustics: 20th International Symposium on Nonlinear Acoustics including the 2nd International Sonic Boom Forum [030001] (AIP Conference Proceedings; Vol. 1685). American Institute of Physics Inc.. https://doi.org/10.1063/1.4934384