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Effective properties and size effects in filled polymers

Michael Johlitz ; Holger Steeb ; Ralf Jänicke (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik) ; Stefan Diebels
GAMM-Mitteilungen (1522-2608). Vol. 31 (2008), 2, p. 210-224.
[Artikel, refereegranskad vetenskaplig]

Filled polymers are of special interest according to their superior mechanical properties. Special attention is given to nano-filled polymers where not only the volume fraction but also the internal surface has a significant contribution to the effective properties. In the present contribution the increase in stiffness with decreasing size of the fillers at constant volume fraction of the fillers is modelled by a phenomenological, i.e. continuum-based, approach taking into account large deformations. The proposed multiphase model allows for a systematic investigation of increasing surface-to-volume ratio which becomes important for micro- and nanosized fillers. The numerical treatment of the proposed model is based on a coupled Galerkin finite element formulation.

Denna post skapades 2017-11-23.
CPL Pubid: 253362


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Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Material- och beräkningsmekanik (2005-2017)



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