Closure to “Macroelement and Macropatch Approaches to Structural Topology Optimization Using the Ground Structure Method” by Xiaojia Zhang, Sushant Maheshwari, Adeildo S. Ramos Jr., and Glaucio H. Paulino

Zhang, Xiaojia Shelly; Maheshwari, Sushant; Ramos, Adeildo S.; Paulino, Gláucio H.

doi:10.1061/(asce)st.1943-541x.0002179

Cited by 2 publications

(3 citation statements)

References 16 publications

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“…To ensure that elastic deformation only occurred outside the measuring area so that the top displacement of the tested walls can be accurately estimated in the subsequent analysis, the plastic hinge length was taken as a conservative upper limit of 900 mm (refer to Zhang et al [17] ).…”

Section: Testing and Instrumentationmentioning

confidence: 99%

Decoupling and analysis of the deformation of flanged reinforced concrete shear walls

Wang

Shi

Cai

2019

Structural Design Tall Build

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Summary Compared with rectangular walls, a relatively large proportion of shear deformations are expected for flanged walls due to their larger flexural capacity. As few well‐documented experimental data are available to assess the attributes of the various deformation components of flanged walls, the feasibility of using established models to predict the deformation capacity of flanged walls is debatable. This study presents experimental results for three large‐scale T‐shaped reinforced concrete walls under cyclic loading to examine the relative contributions of flexural, shear, and sliding deformations to lateral displacement. By using a high‐precision and noninterference measurement method based on particle image velocimetry, the deformation components were decoupled to investigate the variation in each deformation component with the total deformation corresponding to the damage evolution process. For flexure‐dominant T‐shaped walls, the ratio of shear‐to‐total deformations in the plastic hinge region slowly increases over the entire plastic range, whereas the ratio of shear‐to‐total top displacements remains approximately constant. When predicting the deformation capacity of flanged walls, shear deformations but not the contribution of sliding deformations should be considered. Based on the proportional relationship between shear strain and curvature, a simple model for estimating the shear deformations of flexure‐dominant flanged walls is proposed.

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Section: Testing and Instrumentationmentioning

confidence: 99%

Decoupling and analysis of the deformation of flanged reinforced concrete shear walls

Wang

Shi

Cai

2019

Structural Design Tall Build

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“…Ground structure optimization through a population‐based algorithm was first established by Zhang. [ 22 ] Further, truss‐based problems were approached through genetic and evolutionary methods by Su et al [ 23 ] and Giger et al [ 24 ] Bujny et al [ 25,26 ] and Raponi [ 27,28 ] researched energy absorption problems through metaheuristic methods. All of the mentioned frameworks were implemented in a macroscopic single‐scale domain.…”

Section: Introductionmentioning

confidence: 99%

“…[21] Ground structure optimization through a population-based algorithm was first established by Zhang. [22] Further, truss-based problems were approached through genetic and evolutionary…”

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confidence: 99%

Multiscale Optimization of 3D‐Printed Beam‐Based Lattice Structures through Elastically Tailored Unit Cells

et al. 2022

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Herein, a numerical multiscale tool is developed to design 3D periodic lattice structures. The work is motivated by the high design freedom of additive manufacturing technologies, which enable complex multiscale lattice structures to be printed. A finite‐element‐based free‐material optimization method is used to determine the ideal orthotropic material properties of a 3D macrostructure space. Subsequently, a population‐based algorithm is established to design optimized microscopic lattice unit cells with the desired structural properties. The design variables are the coordinates of lattice skeleton nodes defined within the 3D lattice unit cell space, and the connectivities between them resulting in a truss skeleton. For the calculation of the mechanical properties of the individual lattice cells, an effective Timoshenko beam‐based finite element calculation method is developed. The macroscale structure can be constructed by periodically filling the domain with the customized unit cell representing a metamaterial. The method is demonstrated by 3D beam problems with compliance constraints. These macroscopic demonstrators of the developed lattice structures were also 3D‐printed. The benefit regarding the weight‐specific structural performance is validated through benchmarking with periodic lattice design solutions using well‐known standard lattice cells.

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Closure to “Macroelement and Macropatch Approaches to Structural Topology Optimization Using the Ground Structure Method” by Xiaojia Zhang, Sushant Maheshwari, Adeildo S. Ramos Jr., and Glaucio H. Paulino

Cited by 2 publications

References 16 publications

Decoupling and analysis of the deformation of flanged reinforced concrete shear walls

Decoupling and analysis of the deformation of flanged reinforced concrete shear walls

Multiscale Optimization of 3D‐Printed Beam‐Based Lattice Structures through Elastically Tailored Unit Cells

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