An interlaminar stress mixed finite element method for the analysis of thick laminated composite plates

Chih-Ping Wu, Hsi Ching Kuo

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

An interlaminar stress mixed finite element method, based on local high order lamination theory wherein the local displacement fields are expanded in terms of high order polynomial series through thickness within each ply and the displacement continuity requirements at the interface between layers are regarded as the constraints introduced into the formulation, is developed. In this C0 isoparametric mixed interlaminar stress element, the nodal unknowns are three displacements, three rotations and five higher-order functions as the generalized degrees of freedom in the mid-surface of each layer and three interlaminar stresses functions as the generalized degrees of freedom at the interface. The interlaminar stresses at interfaces can then be uniquely determined. A generally rectangular thick laminated composite plate, with fully simple supports, subjected to a sinusoidal distribution of transverse load are examined in order to validate the credibility of the present mixed interlaminar stress element. Both the present analytical and finite element results are compared with the 3-D elasticity solutions obtained by Pagano and other finite element solutions based on the global high order lamination theories.

Original languageEnglish
Pages (from-to)29-42
Number of pages14
JournalComposite Structures
Volume24
Issue number1
DOIs
Publication statusPublished - 1993 Jan 1

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Laminated composites
Finite element method
Degrees of freedom (mechanics)
Elasticity
Polynomials

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Civil and Structural Engineering

Cite this

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An interlaminar stress mixed finite element method for the analysis of thick laminated composite plates. / Wu, Chih-Ping; Kuo, Hsi Ching.

In: Composite Structures, Vol. 24, No. 1, 01.01.1993, p. 29-42.

Research output: Contribution to journalArticle

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