Topological optimization of thermoelastic composites with maximized stiffness and heat transfer

A. V. Krysko, J. Awrejcewicz, S. P. Pavlov, K. S. Bodyagina, V. A. Krysko

Research output: Contribution to journalArticle

Abstract

The topological optimization of composite structures is widely used while tailoring materials to achieve the required engineering physical properties. In this paper, the problem of topological optimization of the microstructure of a composite aimed at the construction of a material with most effective values of the bulk modulus of elasticity and thermal conductivity taking into account competing mechanical and thermal properties of the materials included in the composite is defined and solved. A two-phase composite consists of two base materials, one of which has a higher Young modulus but lower thermal conductivity, while the other has a lower Young modulus but higher thermal conductivity. A new class of problems for composites containing material pores or technological inclusions of different shapes is considered. Effective thermoelastic properties are obtained using the asymptotic homogenization method. A modified solid isotropic material with penalization (SIMP) model is used to regularize the problem. The problem of the isoperimetric constraints is solved by the method of moving asymptotes (MMA). The influence on optimal topology of the composite in the presence of two competing materials, and optimality criteria using linear weight functions are investigated. Pareto spaces that provide deep understanding of how these goals compete in achieving optimal topology are constructed.

Original languageEnglish
Pages (from-to)319-327
Number of pages9
JournalComposites Part B: Engineering
Volume158
DOIs
Publication statusPublished - 1 Feb 2019

Fingerprint

Stiffness
Heat transfer
Composite materials
Elastic moduli
Thermal conductivity
Topology
Homogenization method
Composite structures
Thermodynamic properties
Physical properties
Mechanical properties
Microstructure

Keywords

  • Computational modelling
  • Mechanical properties
  • Metal-matrix composites (MMCs)
  • Thermal properties

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Topological optimization of thermoelastic composites with maximized stiffness and heat transfer. / Krysko, A. V.; Awrejcewicz, J.; Pavlov, S. P.; Bodyagina, K. S.; Krysko, V. A.

In: Composites Part B: Engineering, Vol. 158, 01.02.2019, p. 319-327.

Research output: Contribution to journalArticle

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