Accession Number : ADA307700

Title :   Approximate Analysis of the Performance of Char-Forming Ablators.

Descriptive Note : Technical rept.,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CEN TER

Personal Author(s) : Swann, Robert T.

PDF Url : ADA307700

Report Date : JUN 1964

Pagination or Media Count : 25

Abstract : Equations governing the performance of charring ablators, subject to a diffusion-controlled oxidation mechanism of char removal, are derived. A solution is presented for the case of a constant-enthalpy level. The effects of various material properties and environmental parameters are discussed.

Descriptors :   *APPROXIMATION(MATHEMATICS), *ABLATIVE MATERIALS, *CHARRING, SHEAR PROPERTIES, REENTRY VEHICLES, REMOVAL, COMPOSITE MATERIALS, OXIDATION, MATHEMATICAL ANALYSIS, HEATING, PRESSURE, PLASTICS, THERMAL STRESSES, AERODYNAMICS.

Subject Categories : Miscellaneous Materials
      Inorganic Chemistry
      Polymer Chemistry
      Laminates and Composite Materials
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE