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Communication dans un congrès
Generalization of Integral Parameters to Fatigue Loading in Room Temperature
Abstract : In this paper a numerical approach coupling independent path integrals, such as M-integral, to compute the crack driving forces namely the stress intensity factors, and empirical models, for instance Paris-Erdogan’s law, to assess the cumulative fatigue damage (i.e. crack size) during the crack growth process, is proposed. The M-integral derived from Nother’s theorem combines the real and virtual mechanical deformation and stress fields. A finite element routine is developed in order to compute the energy release rate according to the stress intensity factors. Results are given for a simple standard Al7075-T6 tensile test specimen. Finally, numerical estimates are compared to experimental data for various crack length in order to prove the efficiency and the accuracy of the proposed model.
https://hal.univ-angers.fr/hal-02528617
Contributeur : Okina Université d'Angers <>
Soumis le : mercredi 1 avril 2020 - 20:57:36
Dernière modification le : mardi 28 avril 2020 - 16:07:20
Contributeur : Okina Université d'Angers <>
Soumis le : mercredi 1 avril 2020 - 20:57:36
Dernière modification le : mardi 28 avril 2020 - 16:07:20
