Three-Dimensional Analysis of Composite Plates with Material Nonlinearity.

Abstract

The study deals with a fully three-dimensional analysis of laminated composite plates accounting for material nonlinearity. The finite-element method with trilinear interpolation of the three displacements is used to model layers of the laminate (both in the plane of laminae and through the thickness of the laminate). The modified Romberg-Osgood material constitutive relations is used to update the principal moduli in the plane of the laminate. The elastic-plastic model with Hill's criteria for anisotropic criteria is also used to analyze laminates. The shear deformable plate-theory element is also used in the study. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1983
Accession Number
ADA131884

Entities

People

  • A. Nanda
  • Junuthula N. Reddy
  • T. Kuppusamy

Organizations

  • University of Oklahoma

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Civil Engineering
  • Composite Materials
  • Displacement
  • Engineering
  • Equations
  • Finite Element Analysis
  • Interpolation
  • Laminates
  • Materials
  • Mechanics
  • Military Research
  • Stress Strain Relations
  • Thickness
  • Three Dimensional
  • Two Dimensional
  • Virginia

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Structural Health Monitoring of Composite Structures.