Accession Number : AD0780730

Title :   Ballistic Penetration Effects on Biaxially Loaded Graphite/Epoxy Composite Panels.

Descriptive Note : Contractor rept. Sep 72-Sep 73,

Corporate Author : SOUTHWEST RESEARCH INST SAN ANTONIO TEX

Personal Author(s) : Francis,P. H. ; Nagy,A. ; Pennick,H. G. ; Calvit,H. H.

Report Date : APR 1974

Pagination or Media Count : 78

Abstract : The behavior of laminated plates of graphite/ epoxy subjected to 0.30 cal. AP projectile impact has been studied experimen-tally and analytically. The threshold strength and residual strength of these panels were determined, and, in the process, some measure of the cumulative effects of bending, shear and compression waves in the plates was obtained from the difference between the threshold and the residual strengths. (Author-PL)

Descriptors :   *COMPOSITE MATERIALS, *PANELS, BALLISTICS, IMPACT, EPOXY RESINS, CARBON FIBERS, GRAPHITE, LAMINATES, AIRFRAMES, STRENGTH(MECHANICS), STRESSES, LOADS(FORCES), PENETRATION

Subject Categories : Aircraft
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE