FRACTURE MECHANICS GUIDELINES FOR AIRCRAFT STRUCTURAL APPLICATIONS

Abstract

The document provides the guidelines, limitations, and modifications required to perform a structural, fracture analysis using Griffith-Irwin, fracture mechanics principles. It serves as an introduction to fracture mechanics for those personnel who are concerned with fracture strength estimates for aerospace structural applications. Illustrations and hypothetical examples are included which show how engineering solutions for critical crack size and fracture stress may be made. The critical stress intensity (fracture toughness) concept is used as a basic factor for the fracture analysis of materials. For most crack situations, a stress intensity factor can be computed which can be related to critical conditions and estimates made of critical crack lengths, stresses, and crack propagation behaviors. To provide a complete and accurate fracture analysis, the user is encouraged to become familiar with all aspects of the analysis and its limitations.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1970
Accession Number
AD0702528

Entities

People

  • David P. Wilhem

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircraft Design
  • Composite Materials
  • Elastic Properties
  • Engineers
  • Failure Mode And Effect Analysis
  • Fracture (Mechanics)
  • Materials
  • Mechanics
  • Modulus Of Elasticity
  • Plastic Properties
  • Rocket Engines
  • Stress Corrosion
  • Stress Strain Relations
  • Tensile Strength
  • Test And Evaluation
  • Test Methods
  • Three Dimensional

Fields of Study

  • Engineering

Readers

  • Materials Science (Mechanical Engineering).
  • Systems Analysis and Design

Technology Areas

  • Space