Chapter
Jun 20, 2012
Wave Propagation Due to Sinusoidal Excitation in Nonlinear One-Dimensional Soil Column
Publication: Dynamic Response and Soil Properties
Abstract
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.
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Copyright
© 2007 American Society of Civil Engineers.
History
Published online: Jun 20, 2012
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ASCE Technical Topics:
- Continuum mechanics
- Dynamic tests
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering mechanics
- Excitation (physics)
- Geomechanics
- Geotechnical engineering
- Laboratory tests
- Material mechanics
- Material properties
- Materials engineering
- Motion (dynamics)
- Nonlinear waves
- Soil dynamics
- Soil mechanics
- Soil modulus
- Soil properties
- Soil stress
- Solid mechanics
- Tests (by type)
- Wave propagation
- Waves (mechanics)
Authors
Affiliations
Jaehun Ahn
Texas A&M University, Zachry Department of Civil Engineering, 3136 TAMU, College Station, TX 77843-3136
Texas A&M University, Zachry Department of Civil Engineering, 3136 TAMU, College Station, TX 77843-3136. E-mail: [email protected]
Jose M. Roësset
Texas A&M University, Zachry Department of Civil Engineering, 3136 TAMU, College Station, TX 77843-3136
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.