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Proceedings Paper

Solid material rigidity modulus measurements by a nondestructive optical method: application to electrical steering system
Author(s): Nicolas Javahiraly; Cédric Perrotton
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Paper Abstract

We propose a new non destructive optical method for the determination of the shear modulus G of solid materials. The shear modulus is determined by measuring the twisted angle θ as a response of the material sample, depending on an applied force. The measuring of this twisted angle is obtained by using an adapted polarimetric sensor. The effective measurements of rigidity modulus G for different materials were experimentally achieved, we obtained respectively 1.4464.1010 N/m2, 0.99417.109 N/m2 and 1.0395.1011 N/m2 for Aluminum, PMMA and Steel. The study has demonstrated the effective usefulness of our method for evaluating the rigidity modulus. A good agreement between the theoretical and experimental results was achieved. This study permit to design and elaborate a new type of optical torque sensor for electrical power assisted steering system.

Paper Details

Date Published: 10 May 2012
PDF: 12 pages
Proc. SPIE 8368, Photonic Applications for Aerospace, Transportation, and Harsh Environment III, 83680Q (10 May 2012); doi: 10.1117/12.920595
Show Author Affiliations
Nicolas Javahiraly, Univ. de Strasbourg (France)
Cédric Perrotton, Univ. de Strasbourg (France)

Published in SPIE Proceedings Vol. 8368:
Photonic Applications for Aerospace, Transportation, and Harsh Environment III
Alex A. Kazemi; Nicolas Javahiraly; Allen S. Panahi; Simon Thibault, Editor(s)

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