Ahn, J and Biscontin, G and Roësset, JM (2007) Wave propagation due to sinusoidal excitation in nonlinear one-dimensional soil column. Geotechnical Special Publication. ISSN 0895-0563Full text not available from this repository.
The objective of the author's on-going research is to explore the feasibility of determining reliable in situ curves of shear modulus as a function of strain using the dynamic test. The purpose of this paper is limited to investigating what material stiffness is measured from a dynamic test, focusing on the harmonic excitation test. A one-dimensional discrete model with nonlinear material properties is used for this purpose. When a sinusoidal load is applied, the cross-correlation of signals from different depths estimates a wave velocity close to the one calculated from the secant modulus in the stress-strain loops under steady-state conditions. The variables that contributed to changing the average slope of the stress-strain loop also influence the estimate of the wave velocity from cross-correlation. Copyright ASCE 2007.
|Divisions:||Div D > Geotechnical and Environmental|
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|Date Deposited:||15 Dec 2015 13:35|
|Last Modified:||10 Feb 2016 01:23|