LOADING RATE EFFECTS ON COMPRESSIBILITY OF SAND

Stress strain curves from 61 uniaxial strain tests are presented which depict the response of three dry sands to intense transient pressures; the loadings ranged from 10 MPa to 80 MPa and were applied with rise times ranging from a few tenths of a millisecond to a few minutes. Equipment and techniques used to conduct the tests and to assess the effect of wave propagation oon theemeasurements arre escribed. when loading rise times are less than 1 msec, and that the character of the stress-strain relation shifts rapidly from a "stiffening" response (curvature concave to stress axis) to a "softening" response (curvature concave to strain axis). The The stress-strain response of a relatively simple rate-dependent rheologic model is shown to be in good agreement, both qualitatively and quantitatively, with the measured results.(ASCE)

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  • Accession Number: 00319425
  • Record Type: Publication
  • Report/Paper Numbers: ASCE 15640
  • Files: TRIS
  • Created Date: Jan 19 1981 12:00AM