Shape and topology optimization involving the eigenvalues of an elastic structure: A multi-phase-field approach

H Garcke, P Hüttl, P Knopf - Advances in Nonlinear Analysis, 2021 - degruyter.com
A cost function involving the eigenvalues of an elastic structure is optimized using a phase-
field approach, which allows for topology changes and multiple materials. We show …

Phase-field method combined with optimality criteria approach for topology optimization

Y Wang, T Yu, S Natarajan, TQ Bui - Applied Mathematical Modelling, 2024 - Elsevier
This paper introduces a novel topology optimization framework by combining the phase-field
method and optimality criteria approach. This novel approach allows for the automatical …

[HTML][HTML] Numerical optimization of Neumann eigenvalues of domains in the sphere

E Martinet - Journal of Computational Physics, 2024 - Elsevier
This paper deals with the numerical optimization of the first three eigenvalues of the Laplace-
Beltrami operator of domains in the Euclidean sphere of R 3 with Neumann boundary …

Sharp-interface limit of a multi-phase spectral shape optimization problem for elastic structures

H Garcke, P Hüttl, C Kahle, P Knopf - Applied Mathematics & Optimization, 2024 - Springer
We consider an optimization problem for the eigenvalues of a multi-material elastic structure
that was previously introduced by Garcke et al.(Adv. Nonlinear Anal. 11: 159–197, 2022) …

A phase-field version of the Faber–Krahn theorem

P Hüttl, P Knopf, T Laux - Interfaces and Free Boundaries, 2024 - ems.press
We investigate a phase-field version of the Faber–Krahn theorem based on a phase-field
optimization problem introduced by Garcke et al. in their 2023 paper formulated for the …

Phase field model for multi-material shape optimization of inextensible rods

P Dondl, A Maione, S Wolff-Vorbeck - ESAIM: Control, Optimisation …, 2024 - esaim-cocv.org
We derive a model for the optimization of the bending and torsional rigidities of
nonhomogeneous elastic rods. This is achieved by studying a sharp interface shape …

Adaptive Computation of an Elliptic Eigenvalue Optimization Problem with a Phase-Field Approach

J Li, Y Xu, S Zhu - arxiv preprint arxiv:2310.03970, 2023 - arxiv.org
In this paper, we discuss adaptive approximations of an elliptic eigenvalue optimization
problem in a phase-field setting by a conforming finite element method. An adaptive …

[PDF][PDF] Optimization and uncertainty quantification for geometric structures

S Wolff-Vorbeck - 2023 - researchgate.net
This dissertation considers the modelling of geometrical shapes and structures regarding
three different mathematical applications. The first two parts focus on perimeter penalized …

[PDF][PDF] Adaptive Computation of Elliptic Eigenvalue Topology Optimization with a Phase-Field Approach

J Li, Y Xu, S Zhu - researchgate.net
In this paper, we study adaptive approximations of an elliptic eigenvalue optimization
problem in a phasefield setting by a conforming finite element method. An adaptive …

[PDF][PDF] Spectrum of unbounded operators and applications to PDEs.

N Roblet - eloimartinet.github.io
This manuscript is the outcome of my long research project, conducted as part of the
conclusion of my Ensimag engineering training and the preparation for my MSIAM double …