Accession Number : AD0739355

Title :   Studies Pertaining to Solid Propellant Fracture.

Descriptive Note : Technical rept.,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Lindsey,G. H.

Report Date : 31 JAN 1972

Pagination or Media Count : 78

Abstract : The study of propellant fracture has been subdivided into three parts: a fracture criterion is developed for stress fields producing mixed mode crack propagation by drawing a comparison with fracture in uncracked geometries; a means for predicting crack growth and velocity has been developed for linear viscoelastic materials strictly on the basis of stress intensity factors. A fracture characterization of critical stress intensity factor for a CTPB propellant has been completed, which facilitates the application of the theory; and, extensive dewetting experiments have been completed which have confirmed prior theoretical developments of a quasielastic dewetting theory. (Author)

Descriptors :   (*SOLID ROCKET PROPELLANTS, *CRACK PROPAGATION), CRACKS, STRESSES, LOADS(FORCES), TEST METHODS, STRUCTURAL PROPERTIES

Subject Categories : Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE