A stress scale in full-field identification procedures: A diffuse stress gauge

Abstract : Identification techniques solely based on displacement field measurements lack a stress scale and thus require a complementary information to be provided to complete the problem definition. Such a complementary test is proposed in this study, which is itself an identification designed for an unbounded two dimensional domain subjected to a normal point force on its boundary. A complex potential formulation is used to obtain a simple closed-form solution for the Poisson's ratio and Lamé's shear modulus. In order to evaluate the performance and robustness of this identifi- cation technique, the sensitivity to noise and error in grid positioning is investigated numerically.
Keywords : Photomechanics
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Contributor : François Hild <>
Submitted on : Monday, November 14, 2005 - 5:05:29 PM
Last modification on : Wednesday, May 29, 2019 - 10:04:01 AM
Long-term archiving on : Tuesday, September 11, 2012 - 12:47:04 PM

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Stéphane Roux, François Hild, Stéphane Pagano. A stress scale in full-field identification procedures: A diffuse stress gauge. European Journal of Mechanics - A/Solids, Elsevier, 2005, 24, pp.442-451. ⟨10.1016/j.euromechsol.2005.02.002⟩. ⟨hal-00013815⟩

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