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dc.contributorUnited States. Defense Atomic Support Agency.-
dc.contributor.authorEhrgott, John Q., Jr. (John Qua), 1970--
dc.identifier.govdocMiscellaneous Paper S-71-9-
dc.descriptionMiscellaneous Paper-
dc.descriptionAbstract: The formulation of constitutive relations for use in computerized analyses of free-field ground shock phenomena is based primarily on laboratory-determined material properties. These properties, as described by stress-strain relations, are not directly determined in the laboratory, but are derived through interpretation of load and deformation data measured by the experimenter. Throughout this paper, one laboratory test, the triaxial shear test, is used to illustrate the extent of interpretation required on raw data and the influence of this interpretation on recommended constitutive properties. Various techniques that have been developed to obtain stress-strain data from the triaxial test are reviewed along with current advances in measurement systems. Typical raw data are presented and calculations of axial, lateral, ard volumetric strains are made based on a variety of empirical and theoretical approaches. The results demonstrate that research and development efforts are still required in the area of material property testing in order to establish adequate confidence in the formulation of constitutive relations for ground shock calculations.-
dc.publisherU.S. Army Engineer Waterways Experiment Station.-
dc.publisherEngineer Research and Development Center (U.S.)-
dc.relation.ispartofseriesMiscellaneous Paper (U.S. Army Engineer Waterways Experiment Station) ; S-71-9-
dc.rightsApproved for public release; distribution is unlimited.-
dc.sourceThis Digital Resource was created from scans of the Print Resource-
dc.subjectGround shock-
dc.subjectShear tests-
dc.subjectSoil stress-strain relations-
dc.subjectStress-strain measurement-
dc.subjectTriaxial tests-
dc.subjectSoil mechanics-
dc.titleCalculation of stress and strain from triaxial test data on undrained soil specimens-
Appears in Collections:Miscellaneous Paper

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