A High-Order Laminated Plate Theory with Improved In-Plane Responses.

Abstract

In order to improve the accuracy of the in-plane responses of the shear deformable laminated composite plate theories, a new high-order laminated plate theory was developed based upon Reissner's new mixed Variational Principle. To this end, a zig-zag shaped C sub 0 function and Legendre polynomials were introduced into the approximate in-plane displacement distributions across the plate thickness. The accuracy of the present theory was examined by applying it to the cylindrical bending problem of laminated plates which had been solved exactly by Pagano. A comparison with the exact solutions obtained for several symmetric and asymmetric cross-ply laminates indicates that the present theory accurately estimates in-plae responses, even for small span-to-thickness ratios. Keywords: Laminated composite plates; Shear deformations; Composite materials. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1985
Accession Number
ADA164396

Entities

People

  • A. Toledano
  • H. Murakami

Organizations

  • University of California, San Diego

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Applied Mechanics
  • Birds
  • Composite Materials
  • Constitutive Equations
  • Coordinate Systems
  • Displacement
  • Elastic Properties
  • Engineering
  • Equations
  • Laminates
  • Materials
  • Mechanics
  • Thickness
  • Variational Principles

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Structural Dynamics.