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Journal of Materials Science

, Volume 37, Issue 24, pp 5197–5207 | Cite as

Experimental observations and computer simulations of spherical aluminum-alloy projectiles impacting plane limestone targets

  • F. M. Randrianarivony
  • S. Lair
  • S. A. Quinones
  • L. E. Murr
Article

Abstract

The stress distribution within spherical aluminum-alloy (2024) projectiles impacting plane limestone (calcite) targets was observed by converting residual microhardness maps obtained for cross-sections of recovered projectiles impacting from 0.8 to 1.3 km/s. A maximum residual yield stress zone was observed to migrate toward the rear of the impacting projectiles with increasing impact velocity. The maximum occurred at a normalized depth z′/am ≅ 0.5 (where am is the contact radius); consistent with the theoretical result for elastic impacts. Computer simulations showed good agreement with experiment, and demonstrated that elastic assumptions were valid well into the plastic deformation regime.

Keywords

Polymer Calcite Plastic Deformation Computer Simulation Stress Distribution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • F. M. Randrianarivony
    • 1
  • S. Lair
    • 1
  • S. A. Quinones
    • 1
  • L. E. Murr
    • 1
  1. 1.Department of Metallurgical and Materials EngineeringUniversity of Texas at El PasoEl PasoUSA

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