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NSCD discrete element method for modeling mansonry structures with a mixed rigid/deformable approach

Abstract : In our paper we use a discrete method based on the works of J.J. Moreau and M. Jean. This method is called Non Smooth Contact Dynamics. To study a structure with NSCD method usually we have two types of behaviours: • Either we consider all blocks as rigid bodies. This approach allows us to get a macroscopic information about the behaviour of the structure. • Or the lack of information about the internal block behaviour leads us to improve the calculation using deformable blocks. In an entirely deformable approach, the computation takes a very long time. In order to decrease computation time and to reach a higher accuracy than in the rigid case, we will adopt a mixed approach. At first, we will treat our structure as a collection of rigid blocks. If an indicator of macroscopic stress indicates a critical level of loading, we replace this rigid body by a deformable one. The advantage of this mixed approach is to save computation time and to get accurate local information in the more loaded part of the structure. A presentation of this approach will be done through a typical case.
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https://hal.mines-ales.fr/hal-03260522
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Submitted on : Tuesday, June 15, 2021 - 9:23:56 AM
Last modification on : Wednesday, October 20, 2021 - 1:23:05 AM

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  • HAL Id : hal-03260522, version 1

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B. Chetouane, Claude Bohatier, Marc Vinches, Frédéric Dubois. NSCD discrete element method for modeling mansonry structures with a mixed rigid/deformable approach. ECCOMAS 2004 - European Congress on Computational Methods in Applied Sciences and Engineering, Jul 2004, Jyvaskyla, Finland. ⟨hal-03260522⟩

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