Influence and Modeling of Residual Stresses in Thick Walled Pressure Vessels with Through Holes

Abstract

This study utilizes the classic stress based Paris Law fatigue life approach which takes into account the residual stresses as a function of radial location to assess the life of the vessel in the region of both configurations of through holes. It quantifies the concentration of stresses associated with the perpendicular and angled evacuator holes, and the amount of pressure that actually enters the evacuator hole. The analysis is employed to ensure that the life within these through holes meets or exceeds the safe life of the vessel without evacuator holes which has been determined by the 90% lower confidence bound on the 0.1th percentile on the population from the results of a minimum of six tests.

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Document Details

Document Type
Technical Report
Publication Date
Feb 28, 2012
Accession Number
ADA587087

Entities

People

  • A. P. Parker
  • Edward Troiano
  • John H. Izzo

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Aspect Ratio
  • Autofrettage
  • Classification
  • Engineering
  • Fatigue Life
  • Internal Pressure
  • Law
  • Materials
  • Pressure Vessels
  • Residual Stress
  • Residuals
  • Standards
  • Statistical Analysis
  • Stress Concentration
  • Stresses
  • Yield Strength

Readers

  • Materials Science (Mechanical Engineering).
  • Regression Analysis.
  • ballistics.