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Communication Dans Un Congrès Année : 2023

A Constitutive Model for Semi-Crystalline Polymer Deformation Involving Lamellar Fragmentation

Résumé

The mechanism of lamellar fragmentation in the semi-crystalline polymers with spherulitic structure, is observed at the beginning of plastic flow. It causes significant damage. This elementary mechanism is considered here as a result of plastic deformation coupled with damage, in the framework of generalized standard materials. The simplicity and the efficiency of the proposed approach come from the fact that the semi-crystalline polymers are considered as a macromolecular network bridled by intra-lamellar cohesive forces. Tensile tests and relaxation tests demonstrate the usefulness of a damage–plasticity coupled model.
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Dates et versions

hal-04259061 , version 1 (25-10-2023)

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  • HAL Id : hal-04259061 , version 1

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Fabrice Detrez. A Constitutive Model for Semi-Crystalline Polymer Deformation Involving Lamellar Fragmentation. XVII International Conference on Computational Plasticity, COMPLAS 2023, Sep 2023, Barcelona, Spain. ⟨hal-04259061⟩
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