Development and Test of Fiberglass Low-Impact Resistant Towers.

Abstract

A break-away fiberglass mast for use in low impact resistant (LIR) structures to support airport approach lighting systems has been developed. This design will withstand 100 mph winds (including gusts) without ice and 75 mph winds (including gusts) with a 1/2 inch radial ice load. Yet, when struck by a light airplane wing, it breaks into pieces without catastrophic damage to the wing. It was observed that impact energy needed to break the mast was in the order of 679 foot-pounds and that peak forces were in the order of 5,656 lbs. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 30, 1979
Accession Number
ADA077160

Entities

People

  • E. T. Rogers
  • J. A. Ross
  • K. M. Snyder

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Airplanes
  • Aluminum
  • Calibration
  • Construction
  • Dynamic Tests
  • Engineering
  • Fiberglass
  • Fibers
  • Flexural Strength
  • Impact Tests
  • Materials
  • Safety Factor
  • Shear Tests
  • Specifications
  • Test Fixtures
  • Test Methods

Fields of Study

  • Physics

Readers

  • Atmospheric Science/Meteorology
  • Explosive Engineering.
  • Reinforced Composite Materials