Paper number 863
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RHEOLOGICAL AND MORPHOLOGICAL INFLUENCES ON THE VISCOELASTIC BEHAVIOUR OF POLYMER COMPOSITES |
R. Gaertner1 and 2, C. Gauthier1, P. Franciosi1, A. Khavandi1 and M. Shaterzadeh 1
1GEMPPM - UMR 5510, INSA, 69621 Villeurbanne Cedex, France
2UFR Mécanique, Université Claude Bernard - Lyon 1, 69622 Villeurbanne Cedex, France
| Summary | This paper deals with the prediction of the shear dynamic modulus of particle or fibre-reinforced polymer composites. The Christensen-Lo self-consistent model and its (n+1)-phase Hervé-Zaoui extension are used in conjunction with the Hashin correspondence principle to perform the homogeneization from the constituent behaviours. Attention is focused on the rheological effect of an interphase and on the morphological effect of a non-uniform dispersion of the reinforcing phase. Model particle-reinforced materials have been first elaborated with controlled surface treatments and/or coating. Morphological observations are then used to build pertinent self-consistent models in each case. The method was successfully applied to the case of a unidirectional glass fibre composite. |
Keywords | effective properties, viscoelasticity, morphology, interphase, particle-reinforced composites, fibre-reinforced composites, epoxy, modelling. |