Accession Number : AD0720717

Title :   Fundamental Development and Application of a Reaction Rate Model for Mechanical Failure of Viscoelastic Materials.

Descriptive Note : Final technical summary rept. 1 Mar 69-30 Nov 70,

Corporate Author : ATLANTIC RESEARCH CORP ALEXANDRIA VA

Personal Author(s) : Robinson,Courtland N. ; Graham,Phillip H. ; Bersche,Clayton V.

Report Date : MAR 1971

Pagination or Media Count : 104

Abstract : The Final Technical Summary Report presents the results obtained during an experimental program for the further development and application of a reaction rate model for mechanical failure of viscoelastic materials. The objectives of this program have been the evaluation of a general reaction rate failure model applied to fracture data obtained for a CTPB propellant and its binder and the investigation of the influence of chemical microstructure on the model parameters. A special thermal mechanical experiment wherein a uniaxial specimen of Solithane 113 was subjected to a spatially-and time-varying temperature gradient during uniaxial extension was also conducted. (Author)

Descriptors :   (*SOLID ROCKET PROPELLANT BINDERS, *STRUCTURAL PROPERTIES), FAILURE(MECHANICS), STRESSES, STRAIN(MECHANICS), VISCOELASTICITY, POLYMERS, TEST METHODS

Subject Categories : Mechanics
      Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE