The Characterization of the Structure-Property Relations of Electron Beam Cured Composites
Abstract
The ultimate objective of this program was to develop a fundamental understanding of the relations between the processing parameters, the resultant physical and chemical structure and the performance of E-beam cured polymer matrix composites for cryogenic fuel containment structures for future Air Force space operations vehicles. The S-beam induced cure mechanisms for cationic polymerized epoxides and free radical polymerized bismaleimides (BMI) were characterized in terms of processing variables, dissociation chemistry of the catalytic initiators, and inherent absorbed moisture. A general S-beam resin and composite cure model was developed as a function of S-beam processing variables. Stress-thermal cycling of BMI- Carbon fiber composites under cryogenic fuel simulated environments revealed that there is a high probability of microcracking with increasing number of thermo-cycles, higher pre-strain and humidity.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2004
- Accession Number
- ADA422141
Entities
People
- Roger J. Morgan
Organizations
- Texas Engineering Experiment Station