DTIC ADA280430: Recent Advances in Impact Dynamics pdf

DTIC ADA280430: Recent Advances in Impact Dynamics

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In this paper, a simple theoretical analysis of an old problem is presented. The analysis is more complete than earlier versions, but retains the mathematical simplicity of the earlier versions. The major thrust is to separate the material response into two phases. The first phase is dominated by strain rate effects and has a variable plastic wave speed. The second phase is dominated by strain hardening effects and has a constant plastic wave speed. Estimates for dynamic yield stress, strain, strain-rate, and plastic wave speed during both phases are given. Comparisons with several experiments on OFHC copper are included

• Creator/s: Defense Technical Information Center
• Date: 12/1/1989
• Year: 1989
• Book Topics/Themes: DTIC Archive, Hui, D, AMERICAN SOCIETY OF MECHANICAL ENGINEERS NEW YORK, *IMPACT STRENGTH, *COPPER, *BUCKLING, *STRUCTURAL COMPONENTS, VELOCITY, STRESS ANALYSIS, TAYLORS SERIES, PENETRATION, PLASTIC PROPERTIES, PLASTICS, COLUMNS(SUPPORTS), THRUST, HARDENING, YIELD, STRUCTURAL RESPONSE, PLATES, STRAIN HARDENING, SHELLS(STRUCTURAL FORMS), STRAIN RATE

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