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An advanced higher-order theory for laminated composite plates with general lamination angles
Alternative TitleAn advanced higher-order theory for laminated composite plates with general lamination angles
Wu Zhen; Zhu Hong; Chen WanJi
2011
Source PublicationACTA MECHANICA SINICA
ISSN0567-7718
Volume27Issue:5Pages:720-729
AbstractThis paper proposes a higher-order shear deformation theory to predict the bending response of the laminated composite and sandwich plates with general lamination configurations. The proposed theory a priori satisfies the continuity conditions of transverse shear stresses at interfaces. Moreover, the number of unknown variables is independent of the number of layers. The first derivatives of transverse displacements have been taken out from the in-plane displacement fields, so that the C-0 shape functions are only required during its finite element implementation. Due to C-0 continuity requirements, the proposed model can be conveniently extended for implementation in commercial finite element codes. To verify the proposed theory, the four-node C-0 quadrilateral element is employed for the interpolation of all the displacement parameters defined at each nodal point on the composite plate. Numerical results show that following the proposed theory, simple C-0 finite elements could accurately predict the interlaminar stresses of laminated composite and sandwich plates directly from a constitutive equation, which has caused difficulty for the other global higher order theories.
Other AbstractThis paper proposes a higher-order shear deformation theory to predict the bending response of the laminated composite and sandwich plates with general lamination configurations.The proposed theory a priori satisfies the continuity conditions of transverse shear stresses at interfaces.Moreover,the number of unknown variables is independent of the number of layers.The first derivatives of transverse displacements have been taken out from the inplane displacement fields,so that the C0 shape functions are only required during its finite element implementation.Due to C~0 continuity requirements,the proposed model can be conveniently extended for implementation in commercial finite element codes.To verify the proposed theory,the fournode C~0 quadrilateral element is employed for the interpolation of all the displacement parameters defined at each nodal point on the composite plate.Numerical results show that following the proposed theory,simple C0 finite elements could accurately predict the interlaminar stresses of laminated composite and sandwich plates directly from a constitutive equation,which has caused diffculty for the other global higher order theories.
KeywordDISPLACEMENT MODEL ELEMENT Laminated and sandwich composites Higher-order theory C-0 continuity requirement Transverse shear stress
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China] ; [Program for Liaoning Excellent Talents in University] ; [Program for Science and Technology of Shenyang]
CSCD IDCSCD:4325894
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/156145
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Wu Zhen,Zhu Hong,Chen WanJi. An advanced higher-order theory for laminated composite plates with general lamination angles[J]. ACTA MECHANICA SINICA,2011,27(5):720-729.
APA Wu Zhen,Zhu Hong,&Chen WanJi.(2011).An advanced higher-order theory for laminated composite plates with general lamination angles.ACTA MECHANICA SINICA,27(5),720-729.
MLA Wu Zhen,et al."An advanced higher-order theory for laminated composite plates with general lamination angles".ACTA MECHANICA SINICA 27.5(2011):720-729.
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