Cyclic Behavior of Sand Under Very Low Effective Stresses
by Stein Sture, F.ASCE, (Professor, University of Colorado, Department of Civil, Environmental and Architectural Eng., UCB 428, Boulder, CO 80309-0428 E-mail: sture@colorado.edu), Susan Batiste, (Systems Engineer, Laboratory for Atmospheric and Space Physics, University of Colorado, 1234 Innovation Drive, Boulder, CO 80303), Mark Lankton, (Program Manager, Laboratory for Atmospheric and Space Physics, University of Colorado, 1234 Innovation Drive, Boulder, CO 80303), and Jill Parisi, S.M.ASCE, (Graduate Research Assistant, Laboratory for Atmospheric and Space Physics, University of Colorado, 1234 Innovation Drive, Boulder, CO 80303)
pp. 187-204, (doi: http://dx.doi.org/10.1061/40797(172)10)
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| Document type: |
Conference Proceeding Paper |
| Part of: |
Geomechanics: Testing, Modeling, and Simulation |
| Abstract: |
A series of experiments was performed on Ottawa F-75 quartz sand under drained and undrained triaxial compression. The initial effective confining stresses applied to the specimens were extremely low, ranging from 0.05 to 1.30 kPa. In order to achieve the low effective stresses the experiments were performed in microgravity, in the shirt-sleeve environment of the Space Shuttle Orbiter. This paper describes the experimental technique, results from analysis of stresses and strains, and computed tomography imaging. |
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