Boundary-element parallel-computing algorithm for the microstructural analysis of general composites

Authors:
F. C. Araújo;E. F. d'Azevedo;L. J. Gray
Affiliations:
Dept. Civil Eng., UFOP, 35400-000 Ouro Preto-MG, Brazil;Computer Science and Math. Div., ORNL, Oak Ridge, P.O. Box 2008, USA;Computer Science and Math. Div., ORNL, Oak Ridge, P.O. Box 2008, USA
Venue:
Computers and Structures
Year:
2010

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Abstract

A standard continuum-mechanics-based 3D boundary-element (BE) algorithm has been devised to the microstructural modeling of complex heterogeneous solids such as general composites. In the particular applications of this paper, the mechanical properties of carbon-nanotube-reinforced composites are estimated from three-dimensional representative volume elements (RVEs). The shell-like thin-walled carbon nanotubes (CNTs) are also simulated with 3D BE models, and a generic subregion-by-subregion (SBS) algorithm makes the microstructural description of the CNT-polymer systems possible. In fact, based on this algorithm, a general scalable BE parallel code is proposed. Square and hexagonal fiber-packing patterns are considered to simulate the 3D composite microstructures.