Effect of Fiber Diameter on the Reliability of Composites - Automated Laser Diffraction Implementation

Abstract

Composite failures are microscopically sequential and locally redundant. As a result, a composite structure reliability and its strength dependency on geometric size is intimately dependent on the statistics of fiber filament strength. A composite reliability model is needed to utilize such inherent materials redundancy in structural design. This investigation first establishes the important role of fiber diameter measurement in the characterization of fiber filament strength statistics and the composite reliability function, and second, implements the diameter measurement by laser diffraction. This method is automated and lends itself to industrial adoption for materials development, acceptance and quality control. Keywords: Stochastic processes.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1987
Accession Number
ADA193524

Entities

People

  • Jeffrey S. Kunkel

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • C Programming Language
  • Composite Materials
  • Computer Programming
  • Computer Programs
  • Computers
  • Engineering
  • Geometry
  • Materials
  • Materials Science
  • Mechanics
  • Plastic Explosives
  • Probability
  • Probability Distributions
  • Random Variables
  • Reliability
  • Statistical Distributions
  • Statistics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Reinforced Composite Materials
  • Software Engineering

Technology Areas

  • Directed Energy