On modelling reinforced composites exhibiting stochastic fluctuations on volume fraction: a stochastic micromechanical approach
Résumé
The study deals with the characterization of the random fluctuations of volume fraction and its impact on the overall stochastic properties in reinforced composites. A relevant probabilistic model as well as the associated stochastic solver are presented. An original experimental procedure, relying on a non-destructive ultrasonic method, is introduced and allows the parameters involved in the stochastic modelling to be determined. It is seen that the volume fraction can be modelled by a homogeneous random field whose spatial correlation lengths are determined and may provide conditions on the size of the meso-volumes to be considered.
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conference-2008-ICTAM-Adelaide-guilleminot-soize-kondo-binetruy-preprint.pdf (134.7 Ko)
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