Failure modes and durability of kevlar/epoxy composites

Journal Article · Tue Mar 31 23:00:00 EST 1981 · SAMPE Q.; (United States)

OSTI ID:5809228

Morgan, R J; Mones, E T; Steele, W J; Deutscher, S B

The fracture topographies of Kevlar 49/epoxy composite strands and multilayer composites in the form of pressure vessels are discussed in terms of the microscopic deformation and failure processes of the composites. The effect of resin ductility and fiber-matrix interfacial bond strength on mechanisms of fiber damage are considered. The failure of the Kevlar 49 fibers by a splitting process and the parameters, such as fiber fibrillation and macromolecular chain scission, that control such a process are discussed in relation to fiber and composite performance.

• Research Organization: Lawrence Livermore National Lab., CA
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5809228
• Journal Information: SAMPE Q.; (United States), Journal Name: SAMPE Q.; (United States) Vol. 12:3; ISSN SAMQA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360303* -- Composite Materials-- Mechanical Properties-- (-1987)
ARAMIDS
COMPOSITE MATERIALS
CONTAINERS
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
EPOXIDES
FAILURES
FIBERS
FRACTURE PROPERTIES
INTERFACES
MATERIALS
MECHANICAL PROPERTIES
MICROSCOPY
MICROSTRUCTURE
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
PRESSURE VESSELS
SCANNING ELECTRON MICROSCOPY
SYNTHETIC MATERIALS