Journal of the American Ceramic Society · 1994 · 502 citations · 8 references
Natural SciencesMaterials EngineeringMaterials ScienceCeramicsMechanical Behavior Of MaterialsSolid MechanicsCompressive PropertiesStrain Rate EffectsStrength Of MaterialsStrength PropertiesStress-strain BehaviorStructural CeramicsCompression TestingCompressive StrengthCompressive Strength TestingDynamic Compressive TestingDynamic StrengthHopkinson Bar TestingSplit Hopkinson Pressure Bar TestingStrength Testing
The split Hopkinson pressure bar (SHPB) is being widely used to determine the dynamic compressive strength of ceramics and ceramic composites. However, extreme caution needs to be exercised while testing these highstrength ceramics at high strain rates. The highest strain rate at which ceramics can be tested using an SHPB without violating the underlying assumptions is found to be in the range of 2500–3000/s. It is also shown that at very high loading rates, dispersion in the transmitted pulse can lead to discrepancies in measuring the dynamic failure strength of ceramics.
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