Upscaling of viscoelastic properties of highly-filled composites: Investigation of matrix-inclusion-type morphologies with power-law viscoelastic material response

作者：Pichler Ch^*; Lackner R

来源：Composites Science and Technology, 2009, 69(14): 2410-2420.

DOI：10.1016/j.compscitech.2009.06.008

• Analysis multiscale modeling
• Particle-reinforced composites
• Creep
• Elastic properties
• Continuum micromechanics

In this paper, homogenization schemes for upscaling of elastic properties in the framework of continuum micromechanics are extended towards upscaling of viscoelastic material properties. Hereby, the Laplace-Carson transform method is applied to the Mori-Tanaka scheme, the self-consistent scheme, and the generalized self-consistent scheme and solved numerically by the Gaver-Steffest algorithm. The performance of the so-obtained upscaling schemes is: (i) illustrated for an academic example (a 2-phase composite with Maxwellian-type creep response of the phases) and (ii) assessed considering a polyester matrix/marble dust filler composite with respective experimental data taken from the literature. Hereby, for the investigated range of volume fractions of inclusions, ranging from 29 vol.% to 55 vol.%, and a matrix/inclusion-type morphology, the transformed generalized self-consistent scheme emerged as the most suitable scheme for determination of the effective viscoelastic properties of this highly-filled composite material, resulting in a sound representation of the experimental data.

• 出版日期2009-11