On the uniqueness of the elastoplastic properties identified from the indentation test on materials following the Vocé hardening law - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2017

On the uniqueness of the elastoplastic properties identified from the indentation test on materials following the Vocé hardening law

Liang Meng
  • Fonction : Auteur
  • PersonId : 974720
Piotr Breitkopf
Balaji Raghavan

Résumé

In this present work, the existence of non-uniqe solution to inverse identification of three- parameter Voce law is revealed. Different from dimensional analysis, a pair of ”mystical” materials are found through two identification procedures with the aid of non-linear manifold learning algorithm. Considering the non-uniqueness of solution derived with conical indenters when calibrating Hollomon’s parameters, spherical indenters are preferably employed in view that one more length scale is involved. The results presented are based on synthetic data without any noise added.
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Dates et versions

hal-01922520 , version 1 (14-11-2018)

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  • HAL Id : hal-01922520 , version 1

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Liang Meng, Piotr Breitkopf, Balaji Raghavan, Olivier Bartier, Xavier Hernot, et al.. On the uniqueness of the elastoplastic properties identified from the indentation test on materials following the Vocé hardening law. 13e colloque national en calcul des structures, Université Paris-Saclay, May 2017, Giens, Var, France. ⟨hal-01922520⟩
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