Displacement and stress analysis of laminated composite plates using an eight-node quasi-conforming solid-shell element

This paper presents the efficient modeling and analysis of laminated composite plates using an eightnode quasi-conforming solid-shell element, named as QCSS8. The present element QCSS8 is not only lockingfree, but highly computational efficiency as it possesses the explicit element stiffness matrix....

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Main Authors: Wang Yu, Shi Guangyu, Wang Xiaodan
Format: Article
Language:English
Published: De Gruyter 2017-01-01
Series:Curved and Layered Structures
Subjects:
Online Access:http://www.degruyter.com/view/j/cls.2017.4.issue-1/cls-2017-0002/cls-2017-0002.xml?format=INT
id doaj-art-418fb554b6834053a3d53ca2350ef288
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spelling doaj-art-418fb554b6834053a3d53ca2350ef2882018-09-02T07:55:02ZengDe GruyterCurved and Layered Structures2353-73962017-01-014182010.1515/cls-2017-0002cls-2017-0002Displacement and stress analysis of laminated composite plates using an eight-node quasi-conforming solid-shell elementWang Yu0Shi Guangyu1Wang Xiaodan2Department of Mechanics, Tianjin University, 135 Yaguan Road, Tianjin 300354, ChinaDepartment of Mechanics, Tianjin University, 135 Yaguan Road, Tianjin 300354, ChinaDepartment of Mechanics, Tianjin University, 135 Yaguan Road, Tianjin 300354, ChinaThis paper presents the efficient modeling and analysis of laminated composite plates using an eightnode quasi-conforming solid-shell element, named as QCSS8. The present element QCSS8 is not only lockingfree, but highly computational efficiency as it possesses the explicit element stiffness matrix. All the six components of stresses can be evaluated directly by QCSS8 in terms of the 3-D constitutive equations and the appropriately assumed element strain field. Several typical numerical examples of laminated plates are solved to validate QCSS8, and the resulting values are compared with analytical solutions and the numerical results of solid/solidshell elements of commercial codes computed by the present authors in which fine meshes were used. The numerical results show that QCSS8 can give accurate displacements and stresses of laminated composite plates even with coarse meshes. Furthermore, QCSS8 yields also accurate transverse normal strain which is very important for the evaluation of interlaminar stresses in laminated plates. Since each lamina of laminated composite plates can be modeled naturally by one or a few layers of solidshell elements and a large aspect ratio of element edge to thickness is allowed in solid-shell elements, the present solid-shell element QCSS8 is extremely appropriate for the modeling of laminated composite plates.http://www.degruyter.com/view/j/cls.2017.4.issue-1/cls-2017-0002/cls-2017-0002.xml?format=INTLaminated composite platesinterlaminar stresstransverse normal stresssolid-shell elementquasi-conforming element techniquecomputational efficiency
institution Open Data Bank
collection Open Access Journals
building Directory of Open Access Journals
language English
format Article
author Wang Yu
Shi Guangyu
Wang Xiaodan
spellingShingle Wang Yu
Shi Guangyu
Wang Xiaodan
Displacement and stress analysis of laminated composite plates using an eight-node quasi-conforming solid-shell element
Curved and Layered Structures
Laminated composite plates
interlaminar stress
transverse normal stress
solid-shell element
quasi-conforming element technique
computational efficiency
author_facet Wang Yu
Shi Guangyu
Wang Xiaodan
author_sort Wang Yu
title Displacement and stress analysis of laminated composite plates using an eight-node quasi-conforming solid-shell element
title_short Displacement and stress analysis of laminated composite plates using an eight-node quasi-conforming solid-shell element
title_full Displacement and stress analysis of laminated composite plates using an eight-node quasi-conforming solid-shell element
title_fullStr Displacement and stress analysis of laminated composite plates using an eight-node quasi-conforming solid-shell element
title_full_unstemmed Displacement and stress analysis of laminated composite plates using an eight-node quasi-conforming solid-shell element
title_sort displacement and stress analysis of laminated composite plates using an eight-node quasi-conforming solid-shell element
publisher De Gruyter
series Curved and Layered Structures
issn 2353-7396
publishDate 2017-01-01
description This paper presents the efficient modeling and analysis of laminated composite plates using an eightnode quasi-conforming solid-shell element, named as QCSS8. The present element QCSS8 is not only lockingfree, but highly computational efficiency as it possesses the explicit element stiffness matrix. All the six components of stresses can be evaluated directly by QCSS8 in terms of the 3-D constitutive equations and the appropriately assumed element strain field. Several typical numerical examples of laminated plates are solved to validate QCSS8, and the resulting values are compared with analytical solutions and the numerical results of solid/solidshell elements of commercial codes computed by the present authors in which fine meshes were used. The numerical results show that QCSS8 can give accurate displacements and stresses of laminated composite plates even with coarse meshes. Furthermore, QCSS8 yields also accurate transverse normal strain which is very important for the evaluation of interlaminar stresses in laminated plates. Since each lamina of laminated composite plates can be modeled naturally by one or a few layers of solidshell elements and a large aspect ratio of element edge to thickness is allowed in solid-shell elements, the present solid-shell element QCSS8 is extremely appropriate for the modeling of laminated composite plates.
topic Laminated composite plates
interlaminar stress
transverse normal stress
solid-shell element
quasi-conforming element technique
computational efficiency
url http://www.degruyter.com/view/j/cls.2017.4.issue-1/cls-2017-0002/cls-2017-0002.xml?format=INT
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