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ARTICLE
Evolutionary identification of microstructure parameters in the thermoelastic porous material
1
Silesian University of Technology, Department of Computational Mechanics and Engineering, Gliwice, Poland
Submission date: 2019-11-27
Final revision date: 2020-01-14
Acceptance date: 2020-01-16
Online publication date: 2020-04-15
Publication date: 2020-04-15
Corresponding author
Adam Długosz
Department of Computational Mechanics and Engineering, Silesian University of Technology, Konarskiego 18a, 44-100, Gliwice, Poland
Department of Computational Mechanics and Engineering, Silesian University of Technology, Konarskiego 18a, 44-100, Gliwice, Poland
Journal of Theoretical and Applied Mechanics 2020;58(2):373-384
KEYWORDS
TOPICS
solid mechanicsmechanics of materialsinteligent systemscomputational mechanicscoupled fields mechanicsmechanics of compositesheat conduction
ABSTRACT
The work is devoted to the identification of microstructure parameters of a porous body
under thermal and mechanical loads. The goal of the identification is to determine the
parameters of the microstructure on the basis of measurements of displacements and temperatures
at the macro level. A two-scale 3D coupled thermomechanical model of porous
aluminum is considered. The representative volume element (RVE) concept modeled with
periodical boundary conditions is assumed. Boundary-value problems for RVEs (micro-scale)
are solved by means of the finite element method (FEM). An evolutionary algorithm (EA)
is used for the identification as the optimization technique.
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