Finite Element Analysis of Laminated Composite Axisymmetric Solids. Volume 1: Theory and Applications

Abstract

A finite element program is developed to analyze a composite laminate structure axisymmetric geometry and loading. Circumferential displacement is considered in addition to the radial and axial. The fiber orientation may be oblique to the axis. Thus, each nodal point has three degrees of freedom and the procedure models the complete state of stress and strain. The program is verified by application to cross-ply and angle-ply coupons. A segment of a large radius axisymmetric ring under uniform radial pressure is equivalent to a free- edge delamination coupon. The stress field from the axisymmetric analysis is compared with the results of a higher order finite element analysis of a free- edge delamination coupon. Additionally, the computer program has the capability to solve a variety of problems including tubular angle-ply specimens, nozzles, etc. Composite Laminated, Finite Element Method, Delamination, Stress Analysis.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1991
Accession Number
ADA250808

Entities

People

  • R. A. Dandan
  • R. S. Sandhu
  • W. E. Wolfe

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Composite Materials
  • Composite Structures
  • Computer Programs
  • Computers
  • Curve Fitting
  • Elastic Properties
  • Failure Mode And Effect Analysis
  • Finite Element Analysis
  • Geometry
  • Laminates
  • Materials
  • Modulus Of Elasticity
  • Plastic Explosives
  • Stress Strain Relations
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

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