Abstract
Distinct shear bands were generated in a controlled-penetration impact experiment. The experimental set-up included a projectile, an indentor, a stopper, and a backup ring. Impact tests with steel specimens of different flow stresses showed that the shear band length is directly proportional to the flow stress and the indentation depth, and inversely proportional to the back-up hole diameter. A finite element computer code simulation showed that shear bands could be formed without initial disturbances or defects. The calculated shear band length was in good agreement with the experimentally measured ones.
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