Compressive Properties and Column Efficiency of Metals Reinforced on the Surface with Bonded Filaments
Abstract
Compressive tests were performed on metal tubes axially reinforced with filaments bonded to the tube outer surface. Sixty-eight magnesium, aluminum, and titanium tubes reinforced with boron or S-glass filaments were tested. The specimens consisted, by volume, of approximately 50 percent metal, 25 percent filament, and 25 percent epoxy resin. Remarkable mechanical properties indicating substantial weight-saving potential for aerospace structures were obtained. Mass-strength comparisons using the experimental results showed the boron-reinforced metals to weigh from 25 to 40 percent of the weight of titanium for compressive crushing strength and from 40 to 60 percent for column instability. Magnesium or aluminum reinforced with S-glass filaments weighs less than 50 percent of the weight of titanium for compressive crushing strength and about 70 percent for column instability. The concept of bonding high-performance filaments to metal structures builds upon the large existing background of fabrication technology for aerospace structures. This advantage along with the potential weight saving indicated by test data suggests important practical application in structural design.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1968
- Accession Number
- ADA382161
Entities
People
- George W. Zender
- H. B. Dexter
Organizations
- National Aeronautics and Space Administration