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Viscoelastic incremental formulation using creep and relaxation differential approaches
Abstract : A new incremental formulation in the time domain for linear, non-ageing viscoelastic materials undergoing mechanical deformation is presented in this work. The formulation is derived from linear differential equations based on a discrete spectrum representation for the creep and relaxation tensors. The incremental constitutive equations are then obtained by finite difference integration. Thus the difficulty of retaining the stress and strain history in computer solutions is avoided. A complete general formulation of linear viscoelastic stress analysis is developed in terms of increments of strains and stresses in order to establish the constitutive stress-strain relationship. The presented method is validated using numerical simulations and reliable results are obtained.
https://hal-unilim.archives-ouvertes.fr/hal-00635081
Contributeur : Claire Douady Connectez-vous pour contacter le contributeur
Soumis le : lundi 24 octobre 2011 - 16:07:46
Dernière modification le : mercredi 20 octobre 2021 - 01:31:07
Contributeur : Claire Douady Connectez-vous pour contacter le contributeur
Soumis le : lundi 24 octobre 2011 - 16:07:46
Dernière modification le : mercredi 20 octobre 2021 - 01:31:07
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