Thermoelastic Topology Optimization Using Steady-State and Transient Analysis for Stress and Thermal Performance

Leader, Mark K.; Kennedy, Graeme J.

doi:10.2514/6.2021-1895

Cited by 3 publications

(1 citation statement)

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“…Further, multi-material TO with thermo-mechanical loading has been explored (Chen et al, 2022;Chen et al, 2021;Gao et al, 2016;Giraldo-Londoño et al, 2020) and simultaneous optimization of stiffness and thermal properties has been investigated (Diaz & Benard, 2003;Ganobjak & Carstensen, 2019; as well, although the latter should not necessarily be considered design-dependent thermal loading. An extensive overview of thermal loading in TO is provided by Deaton and Grandhi (Deaton & Grandhi, 2014) with a more recent update by Leader (Leader, 2021).…”

Section: Introductionmentioning

confidence: 99%

Compliance-based topology optimization of structural components subjected to thermo-mechanical loading

Ooms

Vantyghem

Thienpont

et al. 2023

Struct Multidisc Optim

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Apart from mechanical actions, structural components in the construction industry may be subjected to a thermal gradient, causing (internally) restrained thermal expansion. These thermal loads can alter the mechanical response of components in a structural topology optimization procedure. Therefore, the influence of thermal loading should be considered in the sensitivity analysis to efficiently update the structural layout of material. In this paper, a density-based topology optimization procedure is developed for compliance minimization of structural components subjected to thermo-mechanical loads considering steady-state heat conduction and weak thermomechanical coupling. The adjoint method is employed to obtain the analytical sensitivities, taking into account the influence of the design-dependent temperature field and thermal properties. The proposed topology optimization procedure is demonstrated on the MBB problem, extended with thermal loading, to investigate the influence of the proposed sensitivities on the optimized results. Furthermore, the thermo-mechanical load ratio is quantitatively defined and its effect on the resulting topologies is studied. The results show that the thermo-mechanical load ratio significantly changes the topology of the optimized results. Finally, the topology optimization procedure is presented in an efficient 138-line MATLAB code and provided as supplementary material, serving as a basis for further research.

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