Analysis of Coating Instability in Composites with Coated Graphite Fibers Subjected to Uniaxial Loading and Temperature Change
Editor(s)
Jones, Walter F.
Abstract
Coated-fiber composites are of continuing technological interest. The purposes of the coating may include protecting the fibers from elevated-temperature oxidation, softening the fiber-matrix interfacial stress concentration, and increasing the work of fracture or the damping of the composite. However, thin brittle coatings on circular-section substrates subjected to uniaxial extension have been observed to have a regular fracture pattern due to buckling of the coating. This buckling-induced fracture phenomenon is due to coating circumferential compression induced by the larger Poisson's ratio of the substrate relative to the fiber and was recently analyzed. Also the buckling of the coating in a coated-fiber composite was analyzed very recently. The present work considers the case of a composite containing coated transversely isotropic fibers so as to be applicable to the technologically important case of graphite fibers.
Recommended Citation
C. W. Bert et al., "Analysis of Coating Instability in Composites with Coated Graphite Fibers Subjected to Uniaxial Loading and Temperature Change," American Society of Mechanical Engineers, Aerospace Division (Publication) AD, American Society of Mechanical Engineers (ASME), Jan 1993.
Meeting Name
American Society of Mechanical Engineers, Aerospace Division (Publication) AD (1993, New Orleans, LA, USA)
Department(s)
Mechanical and Aerospace Engineering
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 1993 American Society of Mechanical Engineers (ASME), All rights reserved.
Publication Date
01 Jan 1993
