Effect of Fast Constant Loading Rates on the Global Behavior of Sand in Triaxial Compression. Suescun-Florez, E. & Iskander, M. GEOTECHNICAL TESTING JOURNAL, 40(1):52-71, AMER SOC TESTING MATERIALS, 1, 2017.
abstract   bibtex   
Loading rate effects on the global stress-strain behavior of sand were investigated by performing triaxial compression tests on air-dried sand specimens. Siliceous and calcareous sands were subjected to triaxial compression at various constant strain rates to investigate the rate effects, initial density, confining pressure, shape and size of grains, as well as type of sand on the mechanical behavior of granular materials. The results indicate that silica sand and coral sand exhibit different rate dependency in terms of stiffness and peak normal stress. In general, strain rate effects are highly dependent on confining stress and relative density, with dense samples subjected to the highest employed confining stress exhibiting the most pronounced effects to variation in strain rates. Calcareous sand also exhibited a higher strain rate dependency than silica sand.
@article{
 title = {Effect of Fast Constant Loading Rates on the Global Behavior of Sand in Triaxial Compression},
 type = {article},
 year = {2017},
 identifiers = {[object Object]},
 keywords = {shear strength; laboratory tests; granular; high s},
 pages = {52-71},
 volume = {40},
 month = {1},
 publisher = {AMER SOC TESTING MATERIALS},
 city = {100 BARR HARBOR DR, W CONSHOHOCKEN, PA 19428-2959 USA},
 id = {a00e5a4a-58ff-3be2-9e0e-24f6137984c8},
 created = {2017-04-18T19:34:33.692Z},
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 last_modified = {2017-04-18T19:34:33.692Z},
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 citation_key = {ISI:000395658500006},
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 abstract = {Loading rate effects on the global stress-strain behavior of sand were
investigated by performing triaxial compression tests on air-dried sand
specimens. Siliceous and calcareous sands were subjected to triaxial
compression at various constant strain rates to investigate the rate
effects, initial density, confining pressure, shape and size of grains,
as well as type of sand on the mechanical behavior of granular
materials. The results indicate that silica sand and coral sand exhibit
different rate dependency in terms of stiffness and peak normal stress.
In general, strain rate effects are highly dependent on confining stress
and relative density, with dense samples subjected to the highest
employed confining stress exhibiting the most pronounced effects to
variation in strain rates. Calcareous sand also exhibited a higher
strain rate dependency than silica sand.},
 bibtype = {article},
 author = {Suescun-Florez, Eduardo and Iskander, Magued},
 journal = {GEOTECHNICAL TESTING JOURNAL},
 number = {1}
}

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