High Performance Composites and Adhesives for V/STOL Aircraft.
Abstract
An interdisciplinary program has been undertaken to address the composite and adhesive materials requirements of V/STOL aircraft. The primary tasks are to develop and characterize high modulus, high toughness resins with use temperatures of 350 F to 450 F or higher, to develop fabrication technology for newly developed resin matrices for graphite-fiber reinforced composites, to develop composite failure criteria for design optimization and to establish appropriate quality control parameters. The principle accomplishments during the reporting period have been to obtain commercial sources for the C10 phthalocyanine resin and composite prepreg of this resin with graphite fiber, to define the fracture behavior of a variety of commercial and in-house high performance resins, to establish quality control methods for the phthalocyanine resins based on nmr spectroscopy, to formulate a polyimide-based resin curable by ionizing radiation and demonstrate that graphite-fiber composites can be fabricated using ionizing radiation, and to show that failure criteria for composites determined with small scale test coupons accurately predict failure of flaws in a box-beam substructure.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1978
- Accession Number
- ADA054637
Entities
People
- Luther B. Lockhart Jr
- Willard D. Bascom
Organizations
- United States Naval Research Laboratory