Analytical modelling of laminated composites

Jeffrey V. Kouri, Satya N. Atluri

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

A significant number of research papers has been published on the analytical modelling of composite laminates over the past 20 years. The drive for more accurate analysis has led us to techniques which have become computationally more and more burdensome, while the engineering world continues to use simple, first-older shear deformable plate theory as its primary tool. This paper presents a unique approach to the analysis of thick laminated composites by presenting two simple finite element methods. The first uses the Predictor Corrector technique to extend the simple Mindlin type element to achieve greater accuracy, and the second develops a new Least Squares element which can approximate a C1 continuous element. The Least Squares element has the capability to incorporate a simplified higher order basis into a piecewise continuous displacement field creating an accurate, yet computationally simple, element. These two methods have the potential to upgrade analysis methods significantly with little additional computational cost. It is hoped that this work can instigate further research into efficient modelling of composite laminates.

Original languageEnglish
Pages (from-to)335-344
Number of pages10
JournalComposites Science and Technology
Volume46
Issue number4
DOIs
StatePublished - 1993

Keywords

  • C continuity approximation
  • finite elements
  • laminated plates

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