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Structural and Multidisciplinary Optimization

Subject Areas: Computer Graphics and Computer-Aided Design
Publisher: Springer Berlin Heidelberg - Springer Journals
ISSN: 1615-147X
SJR: 124

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Journal Article

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

Ooms, Ticho; Vantyghem, Gieljan; Thienpont, Thomas; Van Coile, Ruben; De Corte, Wouter

2023 Structural and Multidisciplinary Optimization

doi:10.1007/s00158-023-03563-3

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....
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Journal Article

A novel learning function of adaptively updating Kriging model for reliability analysis under fuzzy uncertainty

Chen, Zhuangbo; Lu, Zhenzhou; Feng, Kaixuan

2023 Structural and Multidisciplinary Optimization

doi:10.1007/s00158-023-03576-y

In the existing method combining adaptive Kriging and fuzzy simulation (AK–FS) for estimating the failure possibility, the AK is required to correctly identify the state of each sample point in the candidate sample pool of FS. However, the states of some sample points have no contributions to the...
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Journal Article

Hydraulic pressure control in topology optimization of cooling channels with Darcy flow model

Geng, Da; Zhou, Mingdong

2023 Structural and Multidisciplinary Optimization

doi:10.1007/s00158-023-03575-z

The conceptual designs of cooling channels can be quickly obtained by the Darcy flow based topology optimization within a cheap computational cost. However, a long standing issue of this approach is that the hydraulic pressure loss of the optimized flow is difficult to control due to the model...
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Journal Article

Stress-constrained concurrent two-scale topology optimization of functionally graded cellular structures using level set-based trimmed quadrilateral meshes

Ho-Nguyen-Tan, Thuan; Kim, Hyun-Gyu

2023 Structural and Multidisciplinary Optimization

doi:10.1007/s00158-023-03572-2

This paper presents a novel method for stress-constrained concurrent two-scale topology optimization of functional-graded cellular structures using level set-based trimmed quadrilateral meshes. During the optimization process, trimmed quadrilateral meshes are created by cutting macro- and...
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Journal Article

Spatially optimised fibre-reinforced composites with isosurface-controlled additive manufacturing constraints

Luo, Yi-Rong; Hewson, Robert; Santer, Matthew

2023 Structural and Multidisciplinary Optimization

doi:10.1007/s00158-023-03586-w

A design approach accounting for manufacturing constraints is described for spatially optimised fibre-reinforced composites. The approach is based on the optimisation of local fibre orientation, the fibre volume fraction and density-based topology optimisation to determine the optimal design. A...
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Journal Article

A bootstrapping-based weighted average asymptotic sampling formulation for reliability estimation of highly safe structures

Bayrak, Gamze; Nalkıran, Selver Tuğçe; Acar, Erdem

2023 Structural and Multidisciplinary Optimization

doi:10.1007/s00158-023-03574-0

Asymptotic sampling (AS) is an efficient simulation-based technique for estimating the small failure probabilities of structures. AS utilizes the asymptotic behavior of the reliability index with respect to the standard deviations of random variables. In this method, the standard deviations of...
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Journal Article

Robust topology optimization of continuum structures with smooth boundaries using moving morphable components

Latifi Rostami, Seyyed Ali; Kolahdooz, Amin; Chung, Hayoung; Shi, Maolin; Zhang, Jian

2023 Structural and Multidisciplinary Optimization

doi:10.1007/s00158-023-03580-2

Topology optimization has been increasingly used in various industrial designs as a numerical tool to optimize the material layout of a structure. However, conventional topology optimization approaches implicitly describe the structural design and require additional post-processing to generate a...
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Journal Article

Simultaneous discrete and continuum multiresolution topology optimization

Mejías, Gonzalo; Zegard, Tomás

2023 Structural and Multidisciplinary Optimization

doi:10.1007/s00158-023-03592-y

In the field of continuum structures, the density-based methods for topology optimization are well known and broadly studied. Likewise, in the area of (quasi-) optimal discrete element structures, there is significant work which can even consider nonlinear constitutive models. This work seeks to...
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Journal Article

Multi-joint topology optimization for stiffness constrained design problems

Sirola, Tim; Kim, Il Yong

2023 Structural and Multidisciplinary Optimization

doi:10.1007/s00158-023-03581-1

Topology optimization (TO) has been used extensively in industry to develop structurally efficient designs for many years. Traditional applications of TO are confined to a single candidate material, leaving implementations of structurally beneficial multi-material designs mainly up to designer...
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Journal Article

Gaussian process regression based on deep neural network for reliability analysis in high dimensions

Zhou, Tong; Peng, Yongbo

2023 Structural and Multidisciplinary Optimization

doi:10.1007/s00158-023-03582-0

An efficient method is proposed to deal with high-dimensional reliability problems. The critical contribution lies in developing an advanced DGPR model, which effectively combines deep neural network (DNN)-based dimension reduction and Gaussian process regression (GPR) model. Specifically, the...

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