ANALYSIS OF TRANSVERSELY ISOTROPIC LAMINATED CYLINDERS UNDER AXISYMMETRIC MECHANICAL AND THERMAL LOADS

Abstract

A theory for the analysis of stresses in laminated circular cylindrical shells subjected to arbitrary axisymmetric mechanical and thermal loadings has been developed. This theory, specifically for use with pyrolytic graphite type materials, differs from the classical thin shell theory in that it includes the effects of transverse shear deformation and transverse isotropy, as well as thermal expansion through the shell thickness. Solutions in several forms are developed for the governing equations. The form taken by the solution function is governed by geometric considerations. A range in which the various solution forms occur was determined numerically. As a sample problem the slow cooling of pyrolytic graphite deposited onto a commercial graphite mandrel was considered. Investigation of normal and shear stress behavior at the pyrolytic graphite - mandrel interface implies that a thin mandrel and a material weak in shear are desirable to minimize the possibilities of flaking and delamination of the pyrolytic graphite.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1969
Accession Number
AD0699805

Entities

People

  • Jonas A. Zukas

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Space

DTIC Thesaurus Topics

  • Applied Mechanics
  • Composite Materials
  • Computer Programs
  • Computers
  • Elastic Properties
  • Equations
  • Graphitic Materials
  • Lepidoptera
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Shear Stresses
  • Stress Strain Relations
  • Stresses
  • Thermal Expansion
  • Thermal Stresses
  • Two Dimensional

Readers

  • Reinforced Composite Materials
  • Structural Dynamics.
  • Surface Engineering/Surface Coating Technology.