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Article Dans Une Revue International Journal for Numerical Methods in Engineering Année : 2021

Modified Constitutive Relation Error for field identification : theoretical and experimental assessments on fiber orientation identification in a composite material

Résumé

This study addresses the application of the modified Constitutive Relation Error to field identification problems in the framework of elastostatics. We show how relevant is the addition of a gradient-penalizing regularization term (in norm 1 or 2), and emphasize the role played by unreliable boundary conditions. This leads to the proposition of a method using two parameters, for which automatic determination is addressed. All theoretical assessments are illustrated on experimental data. The test-problem consists in the identification of the heterogeneous fiber-orientation in a woven fabric composite from a unique quasi-static tensile test with digital image correlation.
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Dates et versions

hal-03363459 , version 1 (04-10-2021)

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Renaud Ferrier, Aldo Cocchi, Christian Hochard. Modified Constitutive Relation Error for field identification : theoretical and experimental assessments on fiber orientation identification in a composite material. International Journal for Numerical Methods in Engineering, 2021, ⟨10.1002/nme.6842⟩. ⟨hal-03363459⟩
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