Study on the Equiralent Elastic Properties of Two Kinds of Lattice Material Uimicking by Metal Crystal Structures

On the basis of metal crystal structures, the theoretical models of effective elastic Young's modulus of body centered cubic (BCC) and face-centered cubic (FCC) lattice materials were established by using Timoshenko beam model, and the flexibility matrix of lattice materials was determined. The...

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Main Authors: Lu GUO, Guiying WU, Zhihua WANG
Format: Article
Language:English
Published: Editorial Office of Journal of Taiyuan University of Technology 2022-09-01
Series:Taiyuan Ligong Daxue xuebao
Subjects:
Online Access:https://tyutjournal.tyut.edu.cn/englishpaper/show-1970.html
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author Lu GUO
Guiying WU
Zhihua WANG
author_facet Lu GUO
Guiying WU
Zhihua WANG
author_sort Lu GUO
collection DOAJ
description On the basis of metal crystal structures, the theoretical models of effective elastic Young's modulus of body centered cubic (BCC) and face-centered cubic (FCC) lattice materials were established by using Timoshenko beam model, and the flexibility matrix of lattice materials was determined. The effect of nodal and shear on the Young's modulus of lattice materials was analyzed. The results show that the theoretical model is in good agreement with the finite element numerical simulation. Moreover, the lattice nodal has a great influence on the equivalent Young's modulus and shear modulus of BCC and FCC lattices, and the elastic properties of lattice materials will be underestimated if the nodal effect is ignored. FCC has a higher specific Young's modulus than BCC lattice, while BCC has a higher specific shear modulus than FCC lattice. Furthermore, FCC lattice materials have higher compression stiffness than most of lattice materials.
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spelling doaj.art-fdaa16a747ea45faa837cdb0adf758952024-04-15T09:15:56ZengEditorial Office of Journal of Taiyuan University of TechnologyTaiyuan Ligong Daxue xuebao1007-94322022-09-0153586186810.16355/j.cnki.issn1007-9432tyut.2022.05.0101007-9432(2022)05-0861-08Study on the Equiralent Elastic Properties of Two Kinds of Lattice Material Uimicking by Metal Crystal StructuresLu GUO0Guiying WU1Zhihua WANG2College of Mechanical and Vehicle Engineering, Institute of Applied Mechanics, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Mechanical and Vehicle Engineering, Institute of Applied Mechanics, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Mechanical and Vehicle Engineering, Institute of Applied Mechanics, Taiyuan University of Technology, Taiyuan 030024, ChinaOn the basis of metal crystal structures, the theoretical models of effective elastic Young's modulus of body centered cubic (BCC) and face-centered cubic (FCC) lattice materials were established by using Timoshenko beam model, and the flexibility matrix of lattice materials was determined. The effect of nodal and shear on the Young's modulus of lattice materials was analyzed. The results show that the theoretical model is in good agreement with the finite element numerical simulation. Moreover, the lattice nodal has a great influence on the equivalent Young's modulus and shear modulus of BCC and FCC lattices, and the elastic properties of lattice materials will be underestimated if the nodal effect is ignored. FCC has a higher specific Young's modulus than BCC lattice, while BCC has a higher specific shear modulus than FCC lattice. Furthermore, FCC lattice materials have higher compression stiffness than most of lattice materials.https://tyutjournal.tyut.edu.cn/englishpaper/show-1970.htmllattice materialseffective elastic propertiestimoshenko beamflexibility matrix
spellingShingle Lu GUO
Guiying WU
Zhihua WANG
Study on the Equiralent Elastic Properties of Two Kinds of Lattice Material Uimicking by Metal Crystal Structures
Taiyuan Ligong Daxue xuebao
lattice materials
effective elastic properties
timoshenko beam
flexibility matrix
title Study on the Equiralent Elastic Properties of Two Kinds of Lattice Material Uimicking by Metal Crystal Structures
title_full Study on the Equiralent Elastic Properties of Two Kinds of Lattice Material Uimicking by Metal Crystal Structures
title_fullStr Study on the Equiralent Elastic Properties of Two Kinds of Lattice Material Uimicking by Metal Crystal Structures
title_full_unstemmed Study on the Equiralent Elastic Properties of Two Kinds of Lattice Material Uimicking by Metal Crystal Structures
title_short Study on the Equiralent Elastic Properties of Two Kinds of Lattice Material Uimicking by Metal Crystal Structures
title_sort study on the equiralent elastic properties of two kinds of lattice material uimicking by metal crystal structures
topic lattice materials
effective elastic properties
timoshenko beam
flexibility matrix
url https://tyutjournal.tyut.edu.cn/englishpaper/show-1970.html
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AT guiyingwu studyontheequiralentelasticpropertiesoftwokindsoflatticematerialuimickingbymetalcrystalstructures
AT zhihuawang studyontheequiralentelasticpropertiesoftwokindsoflatticematerialuimickingbymetalcrystalstructures