A Photoplastic Study of Residual Stress in an Overloaded Breech Ring.

Abstract

A two-dimensional model of the meridian section of a breech ring was made of a photoplastic material which had been calibrated optically and mechanically. The maximum fillet stress was determined for an elastic load as well as an elastoplastic load. Residual stress resulting from complete unloading was calculated by subtractive superposition of elastic and plastic solutions. An elastic process is assumed during unloading. Transition from model to prototype was discussed. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1978
Accession Number
ADA063464

Entities

People

  • Yi Cheng

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Applied Mechanics
  • Birefringence
  • Creep
  • Equations
  • Geometry
  • Light Sources
  • Materials
  • Mechanics
  • Modulus Of Elasticity
  • Photoelasticity
  • Photoplastic Materials
  • Residual Stress
  • Stress Concentration
  • Stress Strain Relations
  • Stresses
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Mechanical Engineering/Mechanics of Materials.