Failsafe/Safe-Life Interface Criteria

Abstract

The purpose of this study was to develop rational failsafe/safe-life interface criteria for the design of helicopter structural components. Present specifications containing design criteria were reviewed and deficient areas defined. Rational design criteria were developed and are titled 'Damage- Tolerant Design Criteria'. Damage-tolerant design concepts are presented for various helicopter structural components. They include redundant structure, controlled fracture structure and failure indicating systems. The Hughes OH-6A main rotor blade was selected as the structural component to establish the effects on life-cycle costs in designing to different structural criteria and using different damage-tolerant design concepts.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1975
Accession Number
ADA006131

Entities

People

  • James F. Needham

Tags

Communities of Interest

  • Air Platforms
  • Human Systems
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Composite Materials
  • Construction
  • Fabrication
  • Failure Mode And Effect Analysis
  • Fixed Wing Aircraft
  • Fracture (Mechanics)
  • Fuselages
  • Helicopters
  • Materials
  • Mechanics
  • Safety
  • Spars
  • Structural Components
  • Test And Evaluation

Readers

  • Aerospace Engineering
  • Software Engineering
  • Structural Health Monitoring of Composite Structures.