Topology optimization for multiscale design of porous composites with multi-domain microstructures

J Gao, Z Luo, H Li, L Gao - Computer Methods in Applied Mechanics and …, 2019 - Elsevier
This paper proposes a new multiscale topology optimization method for the design of porous
composites composed of the multi-domain material microstructures considering three design …

Three-field floating projection topology optimization of continuum structures

X Huang, W Li - Computer Methods in Applied Mechanics and …, 2022 - Elsevier
Topology optimization using the variable substitution among three fields can achieve a
design with desired solid and/or void features. This paper proposes a three-field floating …

Evolutionary topology optimization for mechanical metamaterials with auxetic property

Y Zheng, Y Wang, X Lu, Z Liao, J Qu - International Journal of Mechanical …, 2020 - Elsevier
Mechanical metamaterials with auxetic property have attracted a lot of attention in both the
computational intelligence and engineering applications. However, the works relate to the …

Spatial-varying multi-phase infill design using density-based topology optimization

H Li, L Gao, H Li, H Tong - Computer Methods in Applied Mechanics and …, 2020 - Elsevier
Porous infill structures have been widely studied and used in additive manufacturing
because of their lightweight and excellent mechanical properties. However, without …

[HTML][HTML] A design framework for gradually stiffer mechanical metamaterial induced by negative Poisson's ratio property

M Ye, L Gao, H Li - Materials & Design, 2020 - Elsevier
Gradually stiffer (GS) mechanical metamaterial is a novel kind of adaptive structures under
nonlinear varying loads for cushioning and vibration damping in engineering. These man …

Design of spatially-varying orthotropic infill structures using multiscale topology optimization and explicit de-homogenization

J Lee, C Kwon, J Yoo, S Min, T Nomura, EM Dede - Additive Manufacturing, 2021 - Elsevier
This paper presents a systematic design procedure of shell-infill structures for additive
manufacturing (AM). Specifically, multiscale topology optimization based on the …

Shape–thickness–topology coupled optimization of free-form shells

X Meng, Y Xiong, YM Xie, Y Sun, ZL Zhao - Automation in Construction, 2022 - Elsevier
Shell structures are widely used in architectural design and civil engineering. However, it
remains challenging to simultaneously optimize their shape, thickness, and topology under …

Stress-constrained shell-lattice infill structural optimisation for additive manufacturing

H Yu, J Huang, B Zou, W Shao, J Liu - Virtual and Physical …, 2020 - Taylor & Francis
This paper presents a numerical study on stress-constrained shell-lattice infill structural
optimisation. This problem is inherently challenging for several reasons:(i) different stress …

Topology optimization of shell–infill structures using an erosion-based interface identification method

Y Luo, Q Li, S Liu - Computer Methods in Applied Mechanics and …, 2019 - Elsevier
Topology optimization of shell–infill structures has been a hot topic in the optimization
community. The crucial issue of such design problem is how to accurately describe the …

Space-time topology optimization for additive manufacturing: Concurrent optimization of structural layout and fabrication sequence

W Wang, D Munro, CCL Wang, F van Keulen… - Structural and …, 2020 - Springer
The design of optimal structures and the planning of (additive manufacturing) fabrication
sequences have been considered typically as two separate tasks that are performed …