Accession Number : ADA313585

Title :   SRM Propellant and Polymer Materials Structural Modeling.

Descriptive Note : Technical paper,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HUNTSVILLE AL GEORGE C MARSHALL SPACE FLIGHT CENTER

Personal Author(s) : Moore, Carleton J.

PDF Url : ADA313585

Report Date : AUG 1988

Pagination or Media Count : 41

Abstract : The following investigation reviews and evaluates the use of stress relaxation test data for the structural analysis of Solid Rocket Motor (SRM) propellants and other polymer materials used for liners, insulators, inhibitors, and seals. The stress relaxation data is examined and a new mathematical structural model is proposed for modeling. This model has potentially wide application to structural analysis of polymer materials and other materials generally characterized as being made of viscoelastic materials. A dynamic modulus is derived from the new model for stress relaxation modulus and is compared to the old viscoelastic model and experimental data.

Descriptors :   *POLYMERS, *COMPOSITE MATERIALS, *STRUCTURAL ANALYSIS, *SOLID PROPELLANT ROCKET ENGINES, MATHEMATICAL MODELS, EXPERIMENTAL DATA, STRUCTURAL PROPERTIES, MATERIALS, INSULATION, STRESS TESTING, VISCOELASTICITY, STRESS RELAXATION.

Subject Categories : Polymer Chemistry
      Solid Propellant Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE