Investigation into the high strain-rate behavior of compacted sand using the split-Hopkinson pressure bar technique
The results of compressive high strain-rate experiments on compacted sand are presented. Experiments were conducted on a 60.3 mm split Hopkinson pressure bar (SHPB). The experiments showed that the assumptions necessary for a valid SHPB experiment are satisfied when using compacted sand samples constrained to a nearly uniaxial strain state. Results show that the sample stress-strain response is governed principally by the initial sample gas porosity, and that no strain-rate dependence is exhibited at sample strains less than the initial gas porosity. Several stress-strain curves are presented for samples prepared at several combinations of moisture content and density with applied stresses and strain rates up to 520 MPa and 4000 sec/sup -1/, respectively.
- Research Organization:
- Air Force Inst. of Tech., Wright-Patterson AFB, OH (USA); Los Alamos National Lab., NM (USA); Utah Univ., Salt Lake City (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6006769
- Report Number(s):
- LA-UR-84-4025; CONF-850466-1; ON: DE85005560
- Country of Publication:
- United States
- Language:
- English
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