A Double Scale Analysis on the Instability Phenomena of Long Fiber Reinforced Materials
Résumé
This work proposes a double scale analysis on the instability phenomena of long fiber reinforced composites. The multilevel finite element method (FE2) is adopted to realize the real-time interaction between the microscopic and the macroscopic levels. To simulate the fiber buckling, an efficient Fourier-related representative volume element model is proposed, where all fast varying unknowns are replaced by slowly varying unknowns. The nonlinear multiscale system is solved by Asymptotic Numerical Method (ANM), which is more reliable and less time consuming than other classical iterative methods.
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