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Download Nonlinear Elasticity and Hysteresis: Fluid-Solid Coupling in by Alicia H. Kim, Robert A. Guyer PDF

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By Alicia H. Kim, Robert A. Guyer

The ebook offers the reader with the data, instruments, and techniques to appreciate the phenomenon of hysteresis in porous materials.

As many demanding situations were met only in the near past, the booklet summarizes the study effects often stumbled on merely scattered within the literature, connecting wisdom from characteristically separated examine fields to supply a greater realizing of the actual phenomena of coupled elastic-fluid platforms.

the result's a useful self-contained reference e-book for fabrics scientists, civil, mechanical and development engineers all in favour of improvement and upkeep of constructions made up of porous fabrics.

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Additional resources for Nonlinear Elasticity and Hysteresis: Fluid-Solid Coupling in Porous Media

Sample text

We need to measure elasticity, temperature, and lattice parameters, and to control and change the temperature and environment of the sample. Ideally, we strove to measure the response of the rock to a step function change in the temperature, as for an electrical circuit analog. We use the resonant frequency of the sample to determine the qualitative behavior of the elastic constants of the sample. 6) in a typical low-amplitude swept-frequency resonant ultrasound spectroscopy (RUS) [27] measurement.

The cement is generally a complex structure [1] – layered with possibly different morphologies, water content, and crystallinity in each layer – so a large number of potential strain-dependent energy structures might produce the microscopic hysteretic effects. Recent results with very dry Berea sandstone suggest that fluid water is not necessary for nonlinear or hysteretic effects, but monolayers of water within or on the cementation may still be active. Finally, a note about the final external applied field was considered, applying an acoustic field to the rock while taking neutron diffraction data.

1993) Fundamental observations concerning hysteresis in the deformation of intact and jointed rock with applications to nonlinear attenuation in the near source region. Proceedings of the Numerical Modeling for Underground Nuclear Test Monitoring Symposium. Report LA-UR-93-3839, Los Alamos National Laboratory, p. 121. B. R. P. E. Laubach), A. A. Balkema, Rotterdam, p. 497. B. R. (2000) Frictional effects on the volumetric strain of sandstone. Int. J. Rock Mech. Min. , 37, 121–132. Holcomb, D. (1981) Memory, relaxation, and microfracturing in dilatant rock.

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