Structural Inelasticity XXV. Computation of Non-Unique Solutions of Elastic-Plastic Trusses.

Abstract

It has recently been shown that the solution to certain well-defined boundary value problems for elastic/perfectly-plastic structures is non-unique. The present paper is concerned with the ability of finite-element computer programs to handle such solutions. Some problems arising from non-uniqueness are documented and techniques for circumventing those problems are evaluated by exploring the response of the program NonSAP to a variety of trusses with non-unique solutions. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1979
Accession Number
ADA080354

Entities

People

  • David L. White
  • Philip G. Hodge Jr.

Organizations

  • University of Minnesota

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Value Problems
  • Computations
  • Computer Programs
  • Computers
  • Engineering
  • Mechanics
  • Military Research
  • Minnesota
  • Plastic Explosives
  • Universities

Fields of Study

  • Mathematics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Structural Dynamics.
  • Systems Analysis and Design