Accession Number : ADA291309

Title :   An Experimental Method for Dynamic Properties of Composites at Interior Ballistic Rates of Loading.

Descriptive Note : Final rept. Oct 92-Oct 93,

Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Tzeng, Jerome T. ; Abrahamian, Ara S.

PDF Url : ADA291309

Report Date : FEB 1995

Pagination or Media Count : 36

Abstract : An experimental method that uses an airgun system was developed to investigate the dynamic response of materials in a gun launch environment. An energy absorbing test fixture was designed to generate the desired loading conditions in the specimen as it decelerated the gun-launched projectile. Methods of data acquisition and reduction were developed using a streak camera and a film digitization technique. The system was calibrated and verified by testing aluminum samples, and fairly good results were obtained. The technique was then applied to a polymer composite laminate having a particular layup construction of interest. Strain rate effects on the compressive strength were observed at the interior ballistic rates of loading. (MM)

Descriptors :   *COMPOSITE MATERIALS, *INTERIOR BALLISTICS, *AIR GUNS, POLYMERS, LAMINATES, PROJECTILES, GUN LAUNCHERS, IMPACT TESTS, DEFORMATION, FIBER REINFORCED COMPOSITES, DAMPING, STRAIN RATE, ALUMINUM, DATA ACQUISITION, COMPRESSIVE STRENGTH, STRESS WAVES.

Subject Categories : Laminates and Composite Materials
      Guns
      Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE