Bifurcation and Localization Instabilities in Cylindrical Shells under Bending. Part 2. Predictions

Abstract

This study is concerned with the prediction of the response and various instabilities found to govern the elastic-plastic flexure of circular cylindrical shells. Sanders' shell kinematics and the principle of virtual work were used to formulate the problem. A Rayleigh-Ritz procedure was used to discretize the problem. The resultant nonlinear equations were solved iteratively using Newton's method. The three types of behavior involving bifurcation into short wavelength ripples, localization following the attainment of a natural limit load and interaction of the two were studied. In each case the predicted response was found to be in very good agreement with the experimental result.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1991
Accession Number
ADA242799

Entities

People

  • G. T. Ju
  • S. Kyriakides

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Agreements
  • Aluminum
  • Amplitude
  • Axisymmetric
  • Buckling
  • Constitutive Equations
  • Curvature
  • Diameters
  • Elastic Shells
  • Equations
  • Geometry
  • Kinematics
  • Materials
  • Mechanical Properties
  • Mechanics
  • Short Wavelengths
  • Thickness

Readers

  • Calculus or Mathematical Analysis
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Mechanical Engineering/Mechanics of Materials.