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Non-intrusive implicit/implicit coupling & ABAQUS co-simulation

Abstract : Non-Intrusive Coupling Techniques (NICT) open the field to a variety of new analysis capabilities (non-intrusive domain decomposition [1], coupling of determinist to stochastic analysis [2], 2D-1D to 3D [3]). In particular, NICT may meet the challenges of industrial multi-scale analysis of large aero-structures: it allows investigating local structural non-linearities, while avoiding any human intervention on existing global models. This is a significant step beyond when compared to existing numerical technologies, which may already afford the coupling of different structural models (sub-modeling), but remain penalizing in terms of operability; or which are valid only within limited domains where local non-linearities do not affect the global behavior significantly. Significant industrialization efforts and dissemination towards AIRBUS stress analysis community will be reported here: implementation of NICT as a global to local, implicit to implicit coupling engine into ABAQUS was managed, relying on co-simulation and adapted meshing strategy. Specific needs of civil aircraft structural engineering have been addressed: global shell to local solid modeling, linear orthotropic elasticity at global scale to damage and failure of composite materials at local scale. Attention was paid to consider models actually representative of day-today stress analysis exercises, which involve geometrical complexity, large number of dofs, mixture of element types (shell, connectors & solid), assembly of parts through imposed kinematical constraints. Critical sources of local non-linearity have been considered in local models: contact, damage and failure of composites, captured through adapted solid meshes (discretization at meso-consituents scale, plies & interfaces) and relevant constitutive models.
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https://hal.archives-ouvertes.fr/hal-01882754
Contributor : Jean-Charles Passieux <>
Submitted on : Friday, February 8, 2019 - 2:51:41 PM
Last modification on : Wednesday, June 24, 2020 - 4:18:54 PM

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  • HAL Id : hal-01882754, version 1

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Stéphane Guinard, Omar Bettinotti, Jean-Charles Passieux, Robin Bouclier. Non-intrusive implicit/implicit coupling & ABAQUS co-simulation. 13th World Congress in Computational Mechanics (WCCMXIII), Jul 2018, New York, United States. ⟨hal-01882754⟩

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