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Chapitre d'ouvrage

On Numerical Evaluation of Mixed Mode Crack Propagation Coupling Mechanical and Thermal Loads in Wood Material

Abstract :

The mixed-mode crack growth coupling mechanical and thermal loads in wood material is investigated in this numerical work. The analytical formulation the crack driving force, namely the energy release rate, is introduced by T-integral that takes into account mixed mode fracture, thermal process in orthotropic material and pressure applied on the crack lips. This new formulation is based on Nother’s theorem and the definition of the strain energy density according to Lagrangian’s and Eulerian’s configurations. Moreover, this analytical formulation is implemented in finite element software Cast3m. First of all, several numerical examples, dealing with isotropic material, are provided to illustrate the accuracy of the FEM model. Then, the crack resistance of a timber CTS (Compact Tension Specimen) is investigated to show the efficiency of the proposed approach in the case of orthotropic material.

Type de document :
Chapitre d'ouvrage
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https://hal.univ-angers.fr/hal-03285289
Contributeur : Okina Université d'Angers <>
Soumis le : mardi 13 juillet 2021 - 11:31:08
Dernière modification le : mercredi 14 juillet 2021 - 03:43:28

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Hassen Riahi, Rostand Moutou Pitti, Frédéric Dubois, Eric Fournely, Jay Carroll, et al.. On Numerical Evaluation of Mixed Mode Crack Propagation Coupling Mechanical and Thermal Loads in Wood Material. Fracture, Fatigue, Failure and Damage Evolution, 5, Springer International Publishing, pp.21-26, 2014, 978-3-319-06976-0. ⟨10.1007/978-3-319-06977-7_3⟩. ⟨hal-03285289⟩

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