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Characterization of compressive damage behavior of steel and aluminum

Allazadeh, Mohammad R. and Itani, Maher K. and Wosu, Sylvanus N. (2012) Characterization of compressive damage behavior of steel and aluminum. Journal of Materials Science Research, 1 (1). pp. 17-36. ISSN 1927-0593

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Abstract

Compressive deformation is imposed on aluminum cast 195-76 and ferritic stainless steel 18-8specimens at high strain rateusing perforation split Hopkinson pressure bar (P-SHPB).The energy levels and the compressive dynamic failure behavior of the materials were investigated at high strain rate deformation between 950 and 5700 s-1. This paper investigates the effects of specimen’s thickness andimpact energy on failure behavior with correlation of P-SHPB and SHPB.The relationship of different damage mode can be followed with the stress-strain relationship, strain rate and energy absorbed by steel and aluminum specimens.