Complementary Energy and Catastrophes.

Abstract

The connection between complementary energy and catastrophes is indicated by a simple example, and by referring to work which shows how Legendre transformations can be continued through their singularities where the Hessian is zero. An experiment is described giving a mapping of the plane onto the plane whose stable singularities appear to be folds and angles, rather than folds and cusps. The work is directed towards the general problem of how integrands in dual variational principles can pass through their singularities.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1978
Accession Number
ADA064034

Entities

People

  • M. J. Sewell

Organizations

  • University of Wisconsin–Madison

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Computational Science
  • Equations
  • Equations Of State
  • Flow
  • Fluid Flow
  • Fluid Mechanics
  • Lagrangian Functions
  • Materials
  • Mathematics
  • Mechanical Properties
  • Mechanics
  • Molecular Mechanics Methods
  • Phase Transformations
  • United States
  • Universities
  • Variational Principles

Readers

  • Calculus or Mathematical Analysis