Rheological Characterisation of Plastic Propellant by Extension under Constant Load.
Abstract
The extension under constant load of plastic propellant (ammonium perchlorate, perhaps Al and a burning catalyst with 10% polyisobutylene binder). Parabolic flow curves have been derived, in agreement with previous parallel-plate plastometer results. The existence of finite yield stresses, of the same order as those measured more accurately by parallel-plate plastometry, has also been established, and the presence of linear shear-hardening confirmed. No evidence of strain-thinning has been found. The limitations of constant-load extensional tests are briefly discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1974
- Accession Number
- ADA002887
Entities
People
- W. A. Dukes