1 Department of Mechanical Engineering, Technical University of Denmark 2 Solid Mechanics, Department of Mechanical Engineering, Technical University of Denmark 3 DTU Admission Course, Technical University of Denmark 4 Centre for oil and gas – DTU, Center, Technical University of Denmark
Numerical homogenization is an efficient way to determine effective macroscopic properties, such as the elasticity tensor, of a periodic composite material. In this paper an educational description of the method is provided based on a short, self-contained Matlab implementation. It is shown how the basic code, which computes the effective elasticity tensor of a two material composite, where one material could be void, is easily extended to include more materials. Furthermore, extensions to homogenization of conductivity, thermal expansion, and fluid permeability are described in detail. The unit cell of the periodic material can take the shape of a square, rectangle, or parallelogram, allowing for all kinds of 2D periodicities. © 2013 Elsevier B.V. All rights reserved.
Computational Materials Science, 2014, Vol 83, p. 488-495
Numerical homogenization; Microstructure; MicroFE; Matlab
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