ON THE STRENGTH DEGRADATION OF FILAMENT WOUND PRESSURE VESSELS SUBJECTED TO A HISTORY OF LOADING

Abstract

If it is assumed that the rate of growth of a Griffith crack that controls the strength of a fiber is proportional to a power of the stress on that fiber we can predict that the ultimate strength of a filament wound pressure vessel decreases linearly with the time at a given load and also that the time to failure when the vessel is held at a given load will increase logarithmically. Both these observations are confirmed experimentally and form the basis for a simple method of predicting the life of a vessel at one load after it has been held for a given time at another.

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Document Details

Document Type
Technical Report
Publication Date
Apr 22, 1963
Accession Number
AD0403122

Entities

People

  • John O. Outwater
  • Willard J. Seibert

Organizations

  • University of Vermont

Tags

DTIC Thesaurus Topics

  • Bursting Strength
  • Cracks
  • Degradation
  • Engineering
  • Equations
  • Fibers
  • Filaments
  • Glass Fibers
  • Hydrostatic Pressure
  • Materials
  • Mechanical Engineering
  • Mechanical Properties
  • Mechanics
  • Military Research
  • Pressure Vessels
  • Stresses
  • Universities

Readers

  • Materials Science (Mechanical Engineering).
  • Reinforced Composite Materials