Application of Fracture Mechanics to Predicting Failures in Solid Propellants

Abstract

Report documents a 14-month program conducted to study the parameters of crack growth in viscoelastic materials. Tests conducted on Solithane and a filled propellant are described, and results of the experimental effort are presented. Analysis of data through the concepts of viscoelastic fracture mechanics is discussed. The behavior of cracks in solid rocket motor geometries and of propellant/liner unbonds was monitored in unique test situations. Basic analytic concepts were compared with test data and found to show promise of applicability. Recommendations for expansion of the study are presented.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1970
Accession Number
AD0870735

Entities

People

  • B. C. Harbert
  • J. D. Burton

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Crack Propagation
  • Data Analysis
  • Elastic Materials
  • Engineering
  • Finite Element Analysis
  • Geometry
  • Measurement
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Propellant Grains
  • Rocket Engines
  • Rocket Propellant Grains
  • Rocket Propulsion
  • Solid Propellants
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Rocket Propulsion.
  • Structural Health Monitoring of Composite Structures.