DETERMINATION OF DYNAMIC FLOW CURVE OF METALS AT AMBIENT AND ELEVATED TEMPERATURES BY ROD IMPACT TECHNIQUES

1 August 1985

journal article
Published by EDP Sciences in Le Journal de Physique Colloques

Vol. 46 (C5) , C5-455
https://doi.org/10.1051/jphyscol:1985556

Abstract

An experimental/computational procedure is described for determining the compressive flow curve of metals at high strains and strain rates (104 to 105/s), at either ambient or elevated temperatures. A cylindrical specimen rod is impacted at high velocities and the resulting deformation profiles are recorded with a high-speed framing camera. The experiment is then simulated using a two-dimensional finite-difference wave propagation code, varying the input flow curve until the experimental and computational profiles agree. Data is presented for AISI 4340 steel and a zinc/aluminum alloy

Keywords

DETERMINATION OF DYNAMIC
ROD IMPACT
IMPACT TECHNIQUES
FLOW CURVE
DYNAMIC FLOW
ELEVATED TEMPERATURES
METALS

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