Two Dimensional Laminated Shell Theory Including Parabolic Transverse Shear

Abstract

The report presents an approach for a general laminated shell geometry describable by orthogonal curvilinear coordinates. The theory includes a through the thickness parabolic distribution of transverse shear stress. Additionally, a simplified approach that allows large displacements and rotations is incorporated. The theory is cast into a displacement based finite element formulation and then specialized to a cylindrical shell geometry. Linear results are compared to exact elasticity solutions of a laminated cylindrical shell in cylindrical bending. The approach predicts displacement and stress for the unidirectional cases very well even for the very thick laminates.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1989
Accession Number
ADA213817

Entities

People

  • Scott T. Dennis

Organizations

  • United States Air Force Academy

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Composite Materials
  • Differential Equations
  • Displacement
  • Elastic Properties
  • Elastic Shells
  • Geometry
  • Laminates
  • Materials
  • Mechanics
  • Shear Stresses
  • Stresses
  • Thickness
  • Three Dimensional
  • Transverse
  • Two Dimensional
  • Unidirectional

Fields of Study

  • Physics

Readers

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