Mathematical Modeling and Finite Element Analysis of Elastic-Plastic Behavior.

Abstract

This investigation is motivated by the need to study the cyclic plasticity response of standard aerospace fasteners within the context of finite element analysis. The available literature on mathematical models of plasticity along with their implementation in finite element procedures was reviewed. The investigation was limited to models of rate-independent plasticity based on the existence of a yield surface and the incremental (rate-type) theory of plasticity. Section II of the report introduces certain definitions and basic concepts including a discussion of the typical response of metals to cyclic loading. The mathematical models of the plastic behavior of metals are reviewed in Section III. Section IV covers the finite element implementation of certain models. A summary and some recommendations for future investigations are presented in Section V. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1981
Accession Number
ADA121887

Entities

People

  • Ranbir S. Sandhu

Organizations

  • University of Dayton

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Air Force
  • Air Force Facilities
  • Computational Fluid Dynamics
  • Computational Science
  • Contracts
  • Crystal Structure
  • Elastic Properties
  • Finite Element Analysis
  • Mathematical Models
  • Mechanical Properties
  • Mechanics
  • Physical Theories
  • Physics Laboratories
  • Plastic Properties
  • Stress Strain Relations
  • Yield Strength

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Structural Health Monitoring of Composite Structures.
  • Theoretical Analysis.

Technology Areas

  • Space