Material-independent Solution For The
Distributions Of Stress And Plastic Strain On The
Neck Section

G. Mirone

doi:10.2495/MC030081

Material-independent Solution For The Distributions Of Stress And Plastic Strain On The Neck Section

Price

Free (open access)

Transaction

WIT Transactions on Engineering Sciences

Volume

Pages

Published

2003

Size

463.08 kb

Paper DOI

10.2495/MC030081

WIT Press

Author(s)

G. Mirone

Abstract

The stress and strain distributions across the necked section of tensile specimens is needed for a real stress-strain characterization of ductile materials in the highly deformed phase of their life The better method currently available to evaluate the above distributions comes from Bridgman [I], which gives material curves affected by an error ranging from 3% to more than 10%. Furthermore, the application of this method requires a considerable amount of work in measuring the curvature radii of the necking profile at different stages of each tensile test. In this paper a new material-independent model for the solut~on of the necking problem is presented, based on the matching of experimental observations and numerical analyses.. The stress and strain distributions on the neck are derived accor

Keywords

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Code

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