TRACKING THE PROPAGATION OF DEFORMATION BANDS BY MEANS OF AN OPTICAL SCANNING EXTENSOMETER

L. Casarotto, R. Tutsch, R. Ritter, H. Dierke, F. Klose, H. Neuhäuser

Abstract

The Portevin-Le Châtelier effect has been investigated by means of an optical extensometer during tensile deformation of Al-3wt%Mg specimens. The propagation of bands with a concentrated deformation has been detected and its velocity measured. A real-time scanning of the phenomenon makes it possible to track the band propagation with an optical sensor.

Keywords

PLC-bands, tensile testing, tracking bands

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PWC-2003-TC15-003.pdf

DOI

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IMEKO TC

TC15 - Experimental Mechanics

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