Results 21 to 30 of about 4,687,940 (367)
Topologically Optimized Graded Foams
Advanced Engineering Materials, 2023 The adoption of Nature‐inspired strategies to improve materials has fostered the introduction of cavities. But how to mass‐produce structures in which a complex architecture of cavities is point‐to‐point fine‐tuned to the local and global application requirements?
Paolo Iaccarino +4 more
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AuTO: a framework for Automatic differentiation in Topology Optimization [PDF]
Structural And Multidisciplinary Optimization, 2021 A critical step in topology optimization (TO) is finding sensitivities. Manual derivation and implementation of sensitivities can be quite laborious and error-prone, especially for non-trivial objectives, constraints and material models.
A. Chandrasekhar, S. Sridhara, K. Suresh
semanticscholar +1 more source
Inverse design in photonics by topology optimization: tutorial [PDF]
Journal of the Optical Society of America B, 2020 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. Approaches comprise gradient and non-gradient based algorithms combined with more
R. Christiansen, O. Sigmund
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Local versus global stress constraint strategies in topology optimization: A comparative study
International Journal for Numerical Methods in Engineering, 2021 Stress‐constrained topology optimization requires techniques for handling thousands to millions of stress constraints. This work presents a comprehensive numerical study comparing local and global stress constraint strategies in topology optimization ...
Gustavo Assis da Silva +3 more
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Topology Optimization of Differentiable Microstructures
Computer Methods in Applied Mechanics and Engineering, 2023 Recent years have seen a growing interest in topology optimization of functionally graded microstructures, characterized by an array of microstructures with varying volume fractions. However, microstructures optimized at slightly different volume fractions do not necessarily connect well when placed adjacently.
Xiaoya Zhai +3 more
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Topology and Parametric Optimization-Based Design Processes for Lightweight Structures
Applied Sciences, 2020 Topology and Parametric Optimization are two of the most implemented material optimization approaches. However, it is not clear in the literature which optimization procedure, or possible combination of them, can lead to the best results based on ...
Evangelos Tyflopoulos, Martin Steinert
doaj +1 more source
Topology optimization using polytopes [PDF]
Computer Methods in Applied Mechanics and Engineering, 2015 Meshing complex engineering domains is a challenging task. Arbitrary polyhedral meshes can provide the much needed flexibility in automated discretization of such domains. The geometric property of the polyhedral meshes such as the unstructured nature and the facial connectivity between elements makes them specially attractive for topology optimization
Glaucio H. Paulino +4 more
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3-D topology optimization of single-pole-type head by using design sensitivity analysis [PDF]
, 2006 It is necessary to develop a write head having a large recording field and small stray field in adjacent tracks and adjacent bits in perpendicular magnetic recording systems.
Akiyama, Koji +2 more
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Neural networks for topology optimization [PDF]
Russian Journal of Numerical Analysis and Mathematical Modelling, 2019 Abstract In this research, we propose a deep learning based approach for speeding up the topology optimization methods. The problem we seek to solve is the layout problem. The main novelty of this work is to state the problem as an image segmentation task.
Ivan V. Oseledets, Ivan Sosnovik
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Optimal transportation, topology and uniqueness [PDF]
Bulletin of Mathematical Sciences, 2011 The Monge-Kantorovich transportation problem involves optimizing with respect to a given a cost function. Uniqueness is a fundamental open question about which little is known when the cost function is smooth and the landscapes containing the goods to be transported possess (non-trivial) topology.
Najma Ahmad +4 more
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