Study Of The Dynamic Stress Strain And Wave Propagation Characteristics Of Soils Report 2 Correlation Of Stress Strain And Wave Propagation Parameters In Shock Loading Dry Sands

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Study Of The Dynamic Stress Strain And Wave Propagation Characteristics Of Soils

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Author : W. L. Durbin
language : en
Publisher:
Release Date : 1964

Study Of The Dynamic Stress Strain And Wave Propagation Characteristics Of Soils written by W. L. Durbin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Sand categories.

Study Of The Dynamic Stress Strain And Wave Propagation Characteristics Of Soils

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Author :
language : en
Publisher:
Release Date : 1964

Study Of The Dynamic Stress Strain And Wave Propagation Characteristics Of Soils written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Sand categories.

Procedures For Prediction Of Ground Shock Phenomena Based On One Dimensional Shock Propagation Considerations

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Author : James V. Zaccor
language : en
Publisher:
Release Date : 1967

Procedures For Prediction Of Ground Shock Phenomena Based On One Dimensional Shock Propagation Considerations written by James V. Zaccor and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Shock waves categories.

The report describes a definitive experimental study in which shock-induced square-wave pulses in soil were observed to give way to decaying pulse shapes, as in a gas shock tube, and rapid attenuation of peak stress occurred thereafter due to nonlinear propagation in the rarefaction. In the study three different duration pulses were applied to an 8-ft vertical column of granular material confined under boundary conditions leading to a stress-strain (Sigma - Epsilon) behavior described by d to the 2nd power Sigma/d Epsilon to the 2nd power> 0, i.e., a strain-hardening type of response. Applied stresses ranged from 50 to 500 psi. The report describes a simple modification to be applied to the prediction procedure described in the first report of this series in order to take into account, to a first approximation, the nonlinear propagation of unloading waves that occurs in real media because of nonlinear stress-strain behavior in the unloading branch. The procedure which predicts stress and motion histories based on the conservation laws, a measured constitutive relationship, and the applied pressure-time profile, is demonstrated by predicting the entire sequence of an experimentally observed square-wave pulse transformation into a decaying pulse. (Author).

List Of Publications Of The U S Army Engineer Waterways Experiment Station

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Author : U.S. Army Engineer Waterways Experiment Station
language : en
Publisher:
Release Date : 1985

List Of Publications Of The U S Army Engineer Waterways Experiment Station written by U.S. Army Engineer Waterways Experiment Station and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Hydraulic engineering categories.

List Of Publications Of The U S Army Engineer Waterways Experiment Station

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Author : Waterways Experiment Station (U.S.)
language : en
Publisher:
Release Date : 1973

List Of Publications Of The U S Army Engineer Waterways Experiment Station written by Waterways Experiment Station (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Hydraulic engineering categories.

An Experimental Study Of Arching In Sand

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Author : James Walsh McNulty
language : en
Publisher:
Release Date : 1965

An Experimental Study Of Arching In Sand written by James Walsh McNulty and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Arches categories.

List Of Publications Of The U S Army Engineer Waterways Experiment Station

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Author : Rose Mary Peck
language : en
Publisher:
Release Date : 1985

List Of Publications Of The U S Army Engineer Waterways Experiment Station written by Rose Mary Peck and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Coastal engineering categories.

List Of Publications Of The U S Army Engineers Waterway Experiment Station

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Author : United States. Army. Corps of Engineers
language : en
Publisher:
Release Date :

List Of Publications Of The U S Army Engineers Waterway Experiment Station written by United States. Army. Corps of Engineers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.

Technical Abstract Bulletin

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Author :
language : en
Publisher:
Release Date :

Technical Abstract Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Science categories.

Wave Propagation Studies In Laterally Confined Columns Of Sand

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Author : Warren J. Baker
language : en
Publisher:
Release Date : 1967

Wave Propagation Studies In Laterally Confined Columns Of Sand written by Warren J. Baker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Seismic wave propagation categories.

An experimental study of the relationship between pertinent wave-propagation parameters and the one-dimensional stress-strain behavior of two sands was conducted. The stress-strain relation for the sands was characterized by a nonlinear strain-hardening behavior. The nature of the stress-strain curve implied that shocks should form or be sustained in the soil. This phenomenon was studied by observing the dynamic and kinematic characteristics generated by a soft-fronted stress pulse applied at one end of a long slender column of laterally confined sand. To develop a method of predicting the kinematics of wave propagation from the stress-strain curve, the observed wave-propagation parameters were related to laboratory stress-strain curves. A unique sample container, loading system, and instrumentation system was developed. The experiments approximated one-dimensional conditions up to reflected stresses of 1,600 psi. The results indicated the shocking-up of the soft-fronted input pulse that could be predicted from the laboratory stress-strain curve. The particle-velocity versus wave-velocity relationships dictated the change in shape of the kinematic pulse and could be predicted using a secant modulus analysis technique. A very high stress versus time gradient (rise times less than 50 microsec) was observed to form as the wave propagated through the soil.