Correlation between mechanical and ultrasonic responses for anisotropic behavior of soils.

Persistent Link:
http://hdl.handle.net/10150/185718
Title:
Correlation between mechanical and ultrasonic responses for anisotropic behavior of soils.
Author:
Jagannath, S. V.
Issue Date:
1991
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
An attempt has been made to develop a Non Destructive Testing (NDT) procedure for the characterization of induced anisotropy in geologic materials and to compare, to quantify and to correlate such response with the anisotropic response as predicted by the constitutive model. Herein, the ultrasonic NDT method is used as a tool to quantify the anisotropic response of the material and the δ₁ model of the HISS series of models is used to describe the mechanical anisotropy. A unique and novel testing procedure which includes three-dimensional mechanical (destructive) testing combined with ultrasonic testing of cubical (cemented sand) samples under various stress paths has been developed. Mechanical response is presented in the form of stress-strain and volumetric responses, while, the ultrasonic response is presented in the form of wave signatures, velocities and attenuations. Also, special tests have been performed to observe experimentally the anisotropic response of a material in shear stress paths. The quantification of mechanical anisotropy is made by using the δ₁ model, while, the ultrasonic velocity and attenuations are used to define the ultrasonic anisotropies. The parameters which define the δ₁ model are determined based on the test results, and the suitability of the model is verified by back-predicting the tests. Correlation functions which relates the mechanical anisotropy with the velocity anisotropy and the attenuation anisotropy have been developed, based on the observed data and on the principles of mechanics. The potential applications of such functions are also discussed.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Dissertations, Academic; Civil engineering.
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Civil Engineering and Engineering Mechanics; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Kundu, T.; Desai, Chandrakant S.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleCorrelation between mechanical and ultrasonic responses for anisotropic behavior of soils.en_US
dc.creatorJagannath, S. V.en_US
dc.contributor.authorJagannath, S. V.en_US
dc.date.issued1991en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractAn attempt has been made to develop a Non Destructive Testing (NDT) procedure for the characterization of induced anisotropy in geologic materials and to compare, to quantify and to correlate such response with the anisotropic response as predicted by the constitutive model. Herein, the ultrasonic NDT method is used as a tool to quantify the anisotropic response of the material and the δ₁ model of the HISS series of models is used to describe the mechanical anisotropy. A unique and novel testing procedure which includes three-dimensional mechanical (destructive) testing combined with ultrasonic testing of cubical (cemented sand) samples under various stress paths has been developed. Mechanical response is presented in the form of stress-strain and volumetric responses, while, the ultrasonic response is presented in the form of wave signatures, velocities and attenuations. Also, special tests have been performed to observe experimentally the anisotropic response of a material in shear stress paths. The quantification of mechanical anisotropy is made by using the δ₁ model, while, the ultrasonic velocity and attenuations are used to define the ultrasonic anisotropies. The parameters which define the δ₁ model are determined based on the test results, and the suitability of the model is verified by back-predicting the tests. Correlation functions which relates the mechanical anisotropy with the velocity anisotropy and the attenuation anisotropy have been developed, based on the observed data and on the principles of mechanics. The potential applications of such functions are also discussed.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectDissertations, Academicen_US
dc.subjectCivil engineering.en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineCivil Engineering and Engineering Mechanicsen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorKundu, T.en_US
dc.contributor.advisorDesai, Chandrakant S.-
dc.contributor.committeememberKiousis, Panos D.en_US
dc.contributor.committeememberArmaleh, Sonia Hannaen_US
dc.identifier.proquest9210323en_US
dc.identifier.oclc712064839en_US
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