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Type: Journal article
Title: Behavior of laminated sandwich plates having interfacial imperfections by a new refined element
Author: Chakrabarti, A.
Sheikh, A.
Citation: Computational Mechanics, 2004; 34(2):87-98
Publisher: Springer
Issue Date: 2004
ISSN: 0178-7675
Statement of
A. Chakrabarti and A. H. Sheikh
Abstract: The static response of laminated sandwich plates having imperfections at the layer interfaces is investigated by a refined plate theory. The plate theory represents parabolic through thickness variation of transverse shear stresses, which are continuous at the layer interfaces and become zero at the plate top and bottom surfaces. In this plate model the interfacial imperfection is represented by a linear spring-layer. Moreover, with all these features of an accurate modeling, it involves unknowns only at the reference plane of the plate. To have generality in the analysis, finite element method is adopted. But any existing plate element cannot be used, as the plate theory demands certain inter-elemental continuity. Thus an attempt has also been made to develop a new triangular element. As there is no published result on imperfect sandwich plates, the problems of perfect sandwich plates and ordinary laminated plate with inter-laminar imperfection are used for validation.
Keywords: Interfacial imperfection; Sandwich plate; Laminates; Stress continuity; Triangular finite element
Description: The original publication can be found at
Provenance: Published online: 10 March 2004
RMID: 0020077871
DOI: 10.1007/s00466-004-0552-6
Appears in Collections:Civil and Environmental Engineering publications

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