Paper Title:
A Laser Speckle Method for Measuring Displacement Field. Application to Resistance Heating Tensile Test on Steel
  Abstract

Strain field measurement with non intrusive techniques is needed in order to characterize the behaviour of steels at high temperatures subjected to small displacements. In this work we present a technique based on laser-produced speckles coupled with a cross-correlation cross-spectrum method. This method proves more accurate than cross-correlation for small displacements. The laser wave length used (532 nm) allows to perform strain measurements, even with heat radiation.

  Info
Periodical
Edited by
R.A.W. Mines and J.M. Dulieu-Barton
Pages
135-140
DOI
10.4028/www.scientific.net/AMM.24-25.135
Citation
C. Pradille, M. Bellet, Y. Chastel, "A Laser Speckle Method for Measuring Displacement Field. Application to Resistance Heating Tensile Test on Steel", Applied Mechanics and Materials, Vols. 24-25, pp. 135-140, 2010
Online since
June 2010
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