Finite Element Analysis of the Swage Autofrettage Process

Abstract

The swage autofrettage process is often used to produce favorable residual stresses in a tube. In this report a finite element analysis of the swage autofrettage process is presented. The nonlinear finite element program (ABAQUS) is used to obtain numerical results for the displacements, strains, and stresses in the tube during and after autofrettage. Approximate solutions are obtained for one- and two-dimensional tubes pressed by rigid or elastic mandrels. The longitudinal effect and the elasticity of the mandrel on the permanent bore enlargement and the residual stresses are discussed. Keywords: Gun tube, Autofrettage, Swaging, Residual stress, Plasticity, Finite element analysis.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1988
Accession Number
ADA200111

Entities

People

  • Peter C. Chen

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Applied Mathematics
  • Assembly
  • Determinants (Mathematics)
  • Elastic Properties
  • Engineering
  • Finite Element Analysis
  • Materials
  • Mechanics
  • Military Research
  • Radial Stress
  • Residual Stress
  • Security
  • Strain Hardening
  • Stresses
  • Tungsten Carbides
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Mechanical Engineering/Mechanics of Materials.