Contact: Michael E. Newman
michael.newman@nist.gov
301-975-3025
National Institute of Standards and Technology (NIST)
Caption: Strain waves traveling at 5,000 meters per second in the NIST Kolsky bar apparatus compress a test slice from a frangible bullet to measure the precise amount of stress needed to break it apart.
Credit: NIST
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Related news release: NIST bullet tests make frangibles more tangible