Nonlinear Problems of the Theory of Heterogeneous Slightly Curved Shells

Abstract

An account if given of the variational method of the solution of physically and geometrically nonlinear problems of the theory of heterogeneous slightly curved shells. Examined are the bending and supercritical behavior of plates and conical and spherical cupolas of variable thickness in a temperature field, taking into account the dependence of the elastic parameters on temperature. The bending, stability in general and load-bearing capacity of flexible isotropic elastic-plastic shells with different criteria of plasticity, taking into account compressibility and hardening. The effect of the plastic heterogeneity caused by heat treatment, surface work hardening and irradiation by fast neutron flux is investigated. Some problems of the dynamic behavior of flexible shells are solved. Calculations are performed in high approximations. Considerable attention is given to the construction of a machine algorithm and to the checking of the convergence of iterative processes.

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Document Details

Document Type
Technical Report
Publication Date
Jul 25, 1973
Accession Number
AD0765543

Entities

People

  • B. Ya. Kantor

Organizations

  • National Air and Space Intelligence Center

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Artificial Intelligence
  • Bending Stress
  • Boundary Value Problems
  • Cauchy Problem
  • Computational Science
  • Differential Equations
  • Elastic Properties
  • Foreign Technology
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Nonlinear Algebraic Equations
  • Plastic Properties
  • Shear Modulus
  • Stresses
  • Variational Equations

Fields of Study

  • Engineering
  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Mechanical Engineering/Mechanics of Materials.