Effect of Measured Material Properties on the Finite Element Analysis of an OH-58 Composite Tail Boom.

Abstract

A static and dynamic finite element analysis was conducted on a U.S. Army OH-58 composite tail boom and compared with test data. The tail boom was a filament-wound graphite/epoxy monocoque structure. The structural design of the composite tail boom skin was based on 50-percent graphite fiber volume. However, material tests on representative samples of the tail boom skin revealed that the graphite fiber-volume fraction varied from 44.6 to 49.3 percent. To determine the effect of using measured material properties, static and dynamic finite element analyses were conducted for three fiber-volume conditions of 45, 48, and 50 percent. The static and dynamic model with the 45-percent fiber-volume graphite skins gave the closest agreement with test data. (AN)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1985
Accession Number
ADA301305

Entities

People

  • Lynn M. Bowman

Organizations

  • Langley Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Composite Materials
  • Elastic Properties
  • Engineering
  • Epoxy Composites
  • Finite Element Analysis
  • Frequency
  • Graphitic Materials
  • Instrumentation
  • Manufacturing
  • Materials
  • Materials Processing
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Resonant Frequency
  • Static Tests

Readers

  • Aerospace Engineering
  • Computational Modeling and Simulation
  • Reinforced Composite Materials