559 citations · 3.1k across the 39 of their papers we have counts for
40 papers
Efficient Inverse-designed Structural Infill for Complex Engineering Structures
Peter Dørffler Ladegaard Jensen, Tim Felle Olsen, J. Andreas Bærentzen +2
Inverse design of high-resolution and fine-detailed 3D lightweight mechanical structures is notoriously expensive due to the need for vast computational resources and the use of ve…
Topology Optimization of self-contacting structures
Andreas Henrik Frederiksen, Ole Sigmund, Konstantinos Poulios
Inclusion of contact in mechanical designs opens a large range of design possibilities, this includes classical designs with contact, such as gears, couplings, switches, clamps etc…
Density-Based Topology Optimization in Method of Moments: Q-factor Minimization
Jonas Tucek, Miloslav Capek, Lukas Jelinek +1
Classical gradient-based density topology optimization is adapted for method-of-moments numerical modeling to design a conductor-based system attaining the minimal antenna Q-factor…
Topology Optimization of Multiscale Structures Considering Local and Global Buckling Response
Christoffer Fyllgraf Christensen, Fengwen Wang, Ole Sigmund
Much work has been done in topology optimization of multiscale structures for maximum stiffness or minimum compliance design. Such approaches date back to the original homogenizati…
Architecting materials for extremal stiffness, yield and buckling strength
Fengwen Wang, Ole Sigmund
This paper proposes a methodology for architecting microstructures with extremal stiffness, yield, and buckling strength using topology optimization. The optimized microstructures…
Simultaneous shape and topology optimization of wings
Lukas C. Høghøj, Cian Conlan-Smith, Ole Sigmund +1
This paper presents a method for simultaneous optimization of the outer shape and internal topology of aircraft wings, with the objective of minimizing drag subject to lift and com…
On the use of Artificial Neural Networks in Topology Optimisation
Rebekka V. Woldseth, Niels Aage, J. Andreas Bærentzen +1
The question of how methods from the field of artificial intelligence can help improve the conventional frameworks for topology optimisation has received increasing attention over…
Topology Optimization of Graded Truss Lattices Based on On-the-Fly Homogenization
Bastian Telgen, Ole Sigmund, Dennis M. Kochmann
We introduce a computational framework for the topology optimization of cellular structures with spatially varying architecture, which is applied to functionally graded truss latti…
Nanometer-scale photon confinement in topology-optimized dielectric cavities
Marcus Albrechtsen, Babak Vosoughi Lahijani, Rasmus Ellebæk Christiansen +8
Nanotechnology enables in principle a precise mapping from design to device but relied so far on human intuition and simple optimizations. In nanophotonics, a central question is h…
Buckling and yield strength estimation of architected materials under arbitrary loads
Morten N. Andersen, Yiqiang Wang, Fengwen Wang +1
Buckling strength estimation of architected materials has mainly been restricted to load cases oriented along symmetry axes. However, realistic load scenarios normally exhibit more…
De-homogenization using Convolutional Neural Networks
Martin O. Elingaard, Niels Aage, J. Andreas Bærentzen +1
This paper presents a deep learning-based de-homogenization method for structural compliance minimization. By using a convolutional neural network to parameterize the mapping from…
Synthesis of Frame Field-Aligned Multi-Laminar Structures
Florian Cyril Stutz, Tim Felle Olsen, Jeroen Peter Groen +4
In the field of topology optimization, the homogenization approach has been revived as an important alternative to the established, density-based methods because it can represent t…
Ultra-coherent nanomechanical resonators based on inverse design
Dennis Høj, Fengwen Wang, Wenjun Gao +3
Engineered micro- and nanomechanical resonators with ultra-low dissipation constitute the ideal systems for applications ranging from high-precision sensing such as magnetic resona…
Revisiting the optimal shape of cooling fins: A one-dimensional analytical study using optimality criteria
Joe Alexandersen, Ole Sigmund
This paper revisits the optimal shape problem of a single cooling fin using a one-dimensional heat conduction equation with convection boundary conditions. Firstly, in contrast to…
Topology Optimization with linearized buckling criteria in 250 lines of Matlab
Federico Ferrari, Ole Sigmund, James K. Guest
We present a 250 line Matlab code for topology optimization for linearized buckling criteria. The code is conceived to handle stiffness, volume and Buckling Load Factors (BLFs) eit…
3D architected isotropic materials with tunable stiffness and buckling strength
Fengwen Wang, Ole Sigmund
This paper presents a class of 3D single-scale isotropic materials with tunable stiffness and buckling strength obtained via topology optimization and subsequent shape optimization…
On the competition for ultimately stiff and strong architected materials
Morten N. Andersen, Fengwen Wang, Ole Sigmund
Advances in manufacturing techniques may now realize virtually any imaginable microstructures, paving the way for architected materials with properties beyond those found in nature…
Internal contact modeling for finite strain topology optimization
Gore Lukas Bluhm, Ole Sigmund, Konstantinos Poulios
The present work proposes an extension of the third medium contact method for solving structural topology optimization problems that involve and exploit self-contact. A new regular…
Compact 200 line MATLAB code for inverse design in photonics by topology optimization: tutorial
Rasmus E. Christiansen, Ole Sigmund
We provide a compact 200 line MATLAB code demonstrating how topology optimization (TopOpt) as an inverse design tool may be used in photonics, targeting the design of two-dimension…
Inverse design in photonics by topology optimization: tutorial
Rasmus E. Christiansen, Ole Sigmund
Topology optimization methods for inverse design of nano-photonic systems have recently become extremely popular and are presented in various forms and under various names. Approac…
Topology Optimization and 3D printing of Large Deformation Compliant Mechanisms for Straining Biological Tissues
P. Kumar, C. Schmidleithner, N. B. Larsen +1
This paper presents a synthesis approach in a density-based topology optimization setting to design large deformation compliant mechanisms for inducing desired strains in biologica…
Topology Optimization of Two Fluid Heat Exchangers
Lukas Christan Høghøj, Daniel Ruberg Nørhave, Joe Alexandersen +2
A method for density-based topology optimization of heat exchangers with two fluids is proposed. The goal of the optimization process is to maximize the heat transfer from one flui…
Large scale three-dimensional manufacturing tolerant stress-constrained topology optimization
Gustavo Assis da Silva, Niels Aage, André Teófilo Beck +1
In topology optimization, the treatment of stress constraints for very large scale problems has so far not been tractable due to the failure of robust agglomeration methods, i.e. t…
A new generation 99 line Matlab code for compliance Topology Optimization and its extension to 3D
Federico Ferrari, Ole Sigmund
Compact and efficient Matlab implementations of compliance Topology Optimization (TO) for 2D and 3D continua are given, consisting of 99 and 125 lines respectively. On discretizati…