Measurements of nonlinearity parameter B/A of water-saturated glass beads under uniaxial compressive loading

Hunki Lee, Eunghwy Noh, Won Suk Ohm, Oh Cho Kwon

Research output: Contribution to journalArticle

Abstract

This Letter reports measurements of nonlinearity parameter B/A of water-saturated glass beads under uniaxial compression representative of the gravitational loading in seabed. The finite-amplitude method in conjunction with the multi-Gaussian beam model is used to determine B/A, in which the use of an accurate source function is found to be important in achieving the overall measurement accuracy. The estimated B/A is on the order of a hundred and decreases with increasing uniaxial compression up to 50 kPa, so that B/A could change as much as 20% over a depth of 5 m for a typical coarse sandy sediment.

Original languageEnglish
Pages (from-to)EL514-EL520
JournalJournal of the Acoustical Society of America
Volume145
Issue number6
DOIs
Publication statusPublished - 2019 Jun 1

All Science Journal Classification (ASJC) codes

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

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