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Uniaxial and triaxial mechanical experiments on rock salt samples from three Gulf Coast Domes
Author(s) -
Price R. H.
Publication year - 1986
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl013i010p01031
Subject(s) - geology , ductility (earth science) , compression (physics) , principal stress , geotechnical engineering , grain size , ultimate tensile strength , materials science , mineralogy , composite material , petrology , geomorphology , creep , shear (geology)
Seventeen quasi‐static experiments on rock salt from three gulf coast domes are presented. The experiments were run at a constant loading rate in compression and extension, over pressures ranging from 0.1 to 13.8 MPa and temperatures ranging from 22 to 100°C. Minor variations in sample grain sizes and composition did not appear to have a distinct effect on strength and behavior trends. Specimen strength was directly related to the least principal stress and inversely related to temperature; furthermore, pressure and temperature increases resulted in larger axial strains to failure (ductility). While strengths in extension and compression were similar, ultimate strains were substantially higher in compression than in extension.