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:	Laminated composite plates interlaminar stress transverse normal stress solid-shell element quasi-conforming element technique computational efficiency
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
recordtype	oai_dc
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
_version_	1612652933128650752

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

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