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TitleMulti-scale modeling of the mechanical behavior of polymer-based materials
Author(s)Araújo, Miguel Carvalho
Martins, J. P.
Mirkhalaf, Mohsen
Lanceros-Méndez, S.
Pires, Francisco
Simões, Ricardo
KeywordsMulti-scale modeling
Mechanical and physical properties
Amorphous polymers
Issue date2013
PublisherInstituto Politécnico do Porto. Instituto Superior de Engenharia do Porto (ISEP)
Abstract(s)Polymers have become the reference material for high reliability and performance applications. In this work, a multi-scale approach is proposed to investigate the mechanical properties of polymeric based material under strain. To achieve a better understanding of phenomena occurring at the smaller scales, a coupling of a Finite Element Method (FEM) and Molecular Dynamics (MD) modeling in an iterative procedure was employed, enabling the prediction of the macroscopic constitutive response. As the mechanical response can be related to the local microstructure, which in turn depends on the nano-scale structure, the previous described multi-scale method computes the stress-strain relationship at every analysis point of the macro-structure by detailed modeling of the underlying micro- and meso-scale deformation phenomena. The proposed multi-scale approach can enable prediction of properties at the macroscale while taking into consideration phenomena that occur at the mesoscale, thus offering an increased potential accuracy compared to traditional methods.
TypeConference paper
AccessRestricted access (UMinho)
Appears in Collections:IPC - Textos completos em actas de encontros científicos internacionais com arbitragem

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