Failure modes and durability of Kevlar/epoxy composites

Conference · Wed Jun 04 00:00:00 EDT 1980

OSTI ID:5225030

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: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5225030
• Report Number(s): UCRL-83875; CONF-801010-2
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360303* -- Composite Materials-- Mechanical Properties-- (-1987)
ARAMIDS
CONTAINERS
DEFORMATION
DUCTILITY
EPOXIDES
FAILURES
FRACTURE PROPERTIES
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
PRESSURE VESSELS
RESINS
TENSILE PROPERTIES