journal article·2020-06Open access

An efficient computational strategy of cycle-jumps dedicated to fatigue of composite structures

O. Sally, F. Laurin, C. Julien, R. Desmorat, F. Bouillon

Abstract

Une méthode pour accélérer les simulations numériques de structures composites soumises à des chargements de fatigue complexe est étudiée. Un modèle d'endommagement incrémental permet de prévoir l'évolution de l'endommagement des composites pendant des chargements de fatigue, même pour les chargements spectraux. Une approche non-linéaire de saut de cycles conçue spécifiquement pour les modèles d'endommagement incrémentaux est proposée, elle permet de réduire drastiquement le temps de calcul des simulations de fatigue par éléments finis.Les simulations utilisant la méthode de saut de cycles proposée sont comparées à des calculs de référence où tous les cycles sont effectués. Elles sont également comparées à une méthode classique de saut de cycles. Cette approche tient compte des cycles non-simulés, même sous des chargements multiaxiaux, et permet d'importantes réductions des coûts de calcul.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Mechanical Behavior of Composites · Probabilistic and Robust Engineering Design · Structural Response to Dynamic Loads

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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