%0 Conference Proceedings
%T NSCD discrete element method for modeling mansonry structures with a mixed rigid/deformable approach
%+ Centre des Matériaux de Grande Diffusion (CMGD)
%+ Laboratoire de Mécanique et Génie Civil (LMGC)
%A Chetouane, B.
%A Bohatier, Claude
%A Vinches, Marc
%A Dubois, Frédéric
%< avec comité de lecture
%B ECCOMAS 2004 - European Congress on Computational Methods in Applied Sciences and Engineering
%C Jyvaskyla, Finland
%8 2004-07-24
%D 2004
%K Deformable blocks
%K Granular media
%K Masonry
%K Mixed approach
%K Rigid blocks
%K Stress tensor
%Z Engineering Sciences [physics]Conference papers
%X 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.
%G English
%L hal-03260522
%U https://imt-mines-ales.hal.science/hal-03260522
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%~ CNRS
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