Proceedings Vol. 20 (2014)
ENGINEERING MECHANICS 2014
May 12 – 15, 2014, Svratka, Czech Republic
Copyright © 2014 Brno University of Technology Institute of Solid Mechanics, Mechatronics and Biomechanics
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 371 - 374, full text
Macroscopically heterogeneous materials, characterized mostly by comparable heterogeneity lengthscale and structural sizes, can no longer be modelled by deterministic approach. It is convenient to introduce stochastic approach with uncertain material parameters quantified as random fields. Nevertheless, introduction of random fields brings higher demands on quality of input data, especially on inputs of covariance functions representing the spatial randomness. The present contribution is devoted to the construction of random fields based on image analysis utilizing statistical descriptors, which were developed to describe the different morphology of two-phase random material. The whole concept is demonstrated on a simple numerical example of stationary heat conduction where interesting phenomena can be clearly understood.
back to list of papers
Text and facts may be copied and used freely, but credit should be given to these Proceedings.
All papers were reviewed by members of the scientific committee.