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Strategy for an efficient material non-linear multiscale analysis
Martínez García, Javier; Otero Gruer, Fermín Enrique; Oller Martínez, Sergio Horacio
Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria Nàutiques; Universitat Politècnica de Catalunya. Departament de Resistència dels Materials i Estructures en Enginyeria; Universitat Politècnica de Catalunya. RMEE - Grup de Resistència de Materials i Estructures a l'Enginyeria
As the internal microstructure of composite materials becomes more complex, multi-scale methods are gaining strength. These allow obtaining the material performance from the analysis of a representative volume element. The use of multiscale procedures is also encouraged by the increase of computational capacity. However, despite of this increase, performing a non-linear multiscale analysis of a real structure is still chimeric due to its computational cost. This work presents a strategy to conduct non-linear multiscale analysis in an efficient way. It is based in the definition of a threshold function, which is developed specifically for each micro-model using its specific strain field. The procedure allows a large reduction of the computational cost, facilitating its use by researchers and engineers without large computational means. The validity of the proposed strategy is shown with the analysis of a pultruded cantilever beam. The results obtained prove the efficiency of the method.
Àrees temàtiques de la UPC::Enginyeria dels materials::Materials compostos
Composite materials--Analysis
Composites
non-linear analysis
Multiscale analysis
homogenization
computational cost
COMPDESMAT Project
COMP-DES-MAT Project
Materials compostos -- Anàlisi
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
         

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