Probabilistic Strength-Life Model for Graphite Fibers Under Stress

Abstract

The work done in this investigation is part of a continuing program designed to develop probabilistic strength and life models for filament composite materials. In this particular experiment, groups of single fibers from two chemically identical different production spools of graphite were loaded to identical sustained tensile loads in order to determine their life statistics while under stress. While previous work has produced models of composite reliability as a function of strength, this work, develops a model which will be necessary to predict the reliability of composite fibers as a function of time. Parametric and non-parametric methods were used to quantify the relationship between fiber reliability as a function of stress and as a function of time.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1992
Accession Number
ADA253023

Entities

People

  • Nigel I. Gardener

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Composite Materials
  • Data Analysis
  • Data Sets
  • Failure Mode And Effect Analysis
  • Filaments
  • Graphitic Materials
  • Information Science
  • Life Tests
  • Load Cells
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Testing
  • Power Supplies
  • Probability
  • Reliability
  • Statistics

Readers

  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Regression Analysis.
  • Structural Health Monitoring of Composite Structures.