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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/4300
Title: An efficient FE model based on combined theory for the analysis of soft core sandwich plate
Authors: Khandelwal R.P.
Chakrabarti, Anupam
Bhargava, Pradeep
Published in: Computational Mechanics
Abstract: An efficient C0 continuous finite element (FE) model is developed based on combined theory (refine higher order shear deformation theory (RHSDT) and least square error (LSE) method) for the static analysis of soft core sandwich plate. In this (RHSDT) theory, the in-plane displacement field for the face sheets and the core is obtained by superposing a global cubically varying displacement field on a zig-zag linearly varying displacement field with a different slope in each layer. The transverse displacement assumes to have a quadratic variation within the core and it remains constant in the faces beyond the core. The proposed model satisfies the condition of transverse shear stress continuity at the layer interfaces and the zero transverse shear stress condition at the top and bottom of the sandwich plate. The nodal field variables are chosen in an efficient manner to circumvent the problem of C1 continuity requirement of the transverse displacements. In order to calculate the accurate through thickness transverse stresses variation, LSE method has been used at the post processing stage. The proposed combine model (RHSDT and LSE) is implemented to analyze the laminated composites and sandwich plates. Many new results are also presented which should be useful for future research. ¬© 2012 Springer-Verlag.
Citation: Computational Mechanics(2013), 51(5): 673-697
URI: https://doi.org/10.1007/s00466-012-0745-3
http://repository.iitr.ac.in/handle/123456789/4300
Issue Date: 2013
Publisher: Springer Verlag
Keywords: Composites
Finite element
Laminate
Plates
Sandwich materials
ISSN: 1787675
Author Scopus IDs: 54904097400
7202579052
14068541600
Author Affiliations: Khandelwal, R.P., Department of Civil Engineering, Indian Institute of Technology, Roorkee 247 667, India
Chakrabarti, A., Department of Civil Engineering, Indian Institute of Technology, Roorkee 247 667, India
Bhargava, P., Department of Civil Engineering, Indian Institute of Technology, Roorkee 247 667, India
Corresponding Author: Khandelwal, R.P.; Department of Civil Engineering, Indian Institute of Technology, Roorkee 247 667, India; email: ravi.iitdelhi@gmail.com
Appears in Collections:Journal Publications [CE]

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