Identification of elastic parameters by displacement field measurement

Abstract : In this Note we study a parameter identification problem associated with a two-dimensional mechanical problem. In a first part, the experimental technique of determining the displacement field is presented. The variational method proposed herein is based on the minimization of a separately convex functional which leads to the reconstruction of the elastic tensor and the stress field. These two reconstructed fields are continuous and piecewise linear on a triangulation of the two-dimensional problem. Some numerical and experimental examples are presented to test the performance of the algorithm.
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Submitted on : Friday, September 24, 2004 - 8:59:54 AM
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Giuseppe Geymonat, François Hild, Stéphane Pagano. Identification of elastic parameters by displacement field measurement. Comptes Rendus Mécanique, Elsevier Masson, 2002, 330, pp.403-408. ⟨10.1016/S1631-0721(02)01476-6⟩. ⟨hal-00002934v2⟩



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