Irradiation and annealing effects on delamination toughness in carbon/epoxy composite

Gamma irradiation to various doses (4.8–27.2 MGy) was performed on unidirectional carbon fiber/epoxy resin composite plates. Unidirectional composite coupons irradiated to various doses were annealed at 180 and 250 °C, in vacuum. The strain energy release rate G IC, as a measure of delamination frac...

Full description

Saved in:
Bibliographic Details
Published in:Journal of nuclear materials 2009, Vol.383 (3), p.209-214
Main Authors: Sekulic, D.R., Gordic, M.V., Djordjevic, I.M., Petrovic, Z.S., Stevanovic, M.M.
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
Installations for energy generation and conversion: thermal and electrical energy
Nuclear fuels
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Gamma irradiation to various doses (4.8–27.2 MGy) was performed on unidirectional carbon fiber/epoxy resin composite plates. Unidirectional composite coupons irradiated to various doses were annealed at 180 and 250 °C, in vacuum. The strain energy release rate G IC, as a measure of delamination fracture toughness, was determined by Mode I fracture testing on double cantilever beam coupons. The glass transition temperature ( T g) of the tested coupons matrices was determined in DMA tests. The effects of irradiation and annealing on G IC values – the mean values of 10 propagation points ( G IC,mean) and that of fracture initiation ( G IC,init) – were established. These values were analyzed as a function of irradiation dose and annealing temperatures, having in mind glass transition temperature values changes, as well as the possible mechanisms and phenomena of irradiation and annealing.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2008.09.009