Some Considerations in the Fatigue Design of Launch and Spacecraft Structures

Abstract

Five years ago, metal fatigue was considered by many to be an unimportant problem in the design of space vehicle systems. Within this period, potential problems were reviewed periodically as experience in the operation of these vehicles increased. No fatigue design criteria have yet been formally documented for this new class of vehicles. Now, trends in future space system design, in addition to some current experience, dictate that the problem can no longer be neglected. This report is intended to supply background information useful in the design of space vehicle system structures. report presents a definition of the fatigue problem as it relates to the strength of structure. It briefly reviews present knowledge in designing to prevent the occurrence of this undesirable phenomenon. Current evaluation methods and guides for use in design, test, and analysis are also reviewed. Several appendixes appear at the end of the report. Their purpose is to serve as a checklist for the designer on those aspects of the problem that are often neglected or are not well known. A review of the appendixes will also reveal those areas in which additional research is required.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1965
Accession Number
ADA392940

Entities

People

  • R. H. Christensen
  • R. J. Bellinfante

Organizations

  • Douglas

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Space

DTIC Thesaurus Topics

  • Aircrafts
  • Dynamic Loads
  • Fabrication
  • Failure Mode And Effect Analysis
  • Fatigue Tests (Mechanics)
  • Frequency Bands
  • Laboratory Tests
  • Material Degradation Processes
  • Materials
  • Mechanical Properties
  • Mechanics
  • Resonant Frequency
  • Spacecraft
  • Stress Analysis
  • Structural Components
  • Test And Evaluation
  • Test Methods

Readers

  • Business Analytics
  • Systems Analysis and Design
  • Theoretical Analysis.

Technology Areas

  • Space