Ordnance Impacts on Jet Engine Fan Blades
Interim technical rept. Jan-Jul 1975
DAYTON UNIV OH RESEARCH INST
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This report describes the experimental section of a program to investigate the damage that a .50 cal ogive inflicts on typical jet engine fan blade materials. Three materials, titanium, graphite epoxy composite and boron aluminum composite, were perforated by .50 caliber ogives at 488 ms. The impact obliquities were investigated, 90 degrees and 60 degrees to trajectory. The momentum transfer during the impact was measured by use of a ballistic pendulum on which the targets were mounted. The momentum transfer was greatest for titanium, considerably lower for boronaluminum and even lower for graphite expoxy. The results agree favorably with the calculated values at 90 degrees but differ at 60 degrees.
- Laminates and Composite Materials
- Jet and Gas Turbine Engines