High-velocity-impact Tests Conducted with Polyethylene Terephthalate Projectiles and Flexible Composite Wall Panels
National Aeronautics and Space Administration, 1971 - Manned space flight - 17 pages
Test results are presented for the high-velocity impact of 11 mg, 6.4-millimeter-diameter polyethylene terephthalate disk projectiles fired into flexible composite wall panels. Test panels were composed of various flexible fabric, film, and foam materials including polyethylene terephthalate, nylon, fiber glass, fluorinated ethylene propylene, steel wire, rayon, fluoroelastomer, polyurethane, and neoprene. Test velocities ranged from 2.07 to 5.79 km/sec.
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5.18 PETP cloth 6.4-mm-diameter PETP disk 6.4-mm-DIAMETER POLYETHYLENE TEREPHTHALATE 9.29 Fluoroelastomer coated Aluminum plate bonded with polyester bonded with urethane bumper and main Bumper wall Polyurethane cloth and film cm FEP cm PETP cloth cm Weight composite of nylon COMPOSITE WALL PANELS COMPOSITE WALLS IMPACTED Cross section damage to flexible density DISK WEIGHING 11 Expandable Structures exploding foil gun flexible composite wall fluorinated ethylene propylene Fluoroelastomer coated 0.0 fragmented by bumper Jerry G kg/m Laminate of nylon Langley Research Center lateral damage layers PETP cloth Material description N/m2 Material description Thickness meteoroid bumper N/m2 Material description N/m2 Silicone rubber N/m2 Total weight N/m2 Yes NASA TN neoprene nylon cloth Nysmith particles PENETRATION DATA polyester adhesive POLYETHYLENE TEREPHTHALATE PETP Polyurethane foam spacer Rayon cloth bonded Silicone rubber adhesive Space spacer Main wall Total wall weight U.S. Air Force unit area penetrated urethane resin wall elements WEIGHING 11 mg weight per unit