EPOXY ADHESIVES FOR REPAIR OF COMPOSITE STRUCTURES .5.

Authors
DODIUK H BUCHMAN A LIRAN I KENIG S
Citation
H. Dodiuk et al., EPOXY ADHESIVES FOR REPAIR OF COMPOSITE STRUCTURES .5., The Journal of adhesion, 40(2-4), 1993, pp. 127-138
Citations number
11
Categorie Soggetti
Engineering, Chemical","Material Science
Journal title
The Journal of adhesion → ACNP
ISSN journal
00218464
Volume
40
Issue
2-4
Year of publication
1993
Pages
127 - 138
Database
ISI
SICI code
0021-8464(1993)40:2-4<127:EAFROC>2.0.ZU;2-V
Abstract
A reduced temperature epoxy formulation for repair of epoxy-graphite c omposite laminates was characterized. The epoxy formulation comprised selected high functionality aromatic epoxy resins and a multi-componen t polyamine curing system containing an elastomeric toughener. Experim ental results for bonding graphite-epoxy specimens have shown that, co mpared with a 175-degrees-C commercial film adhesive, the proposed for mulation has better low temperature shear strength, comparable ambient properties and lower elevated temperature (120-degrees) shear propert ies. The epoxy formulation exhibits the same in-plane shear modulus as the commercial material and a plastic behavior at high shear strains. Consequently, the fatigue endurance of the epoxy formulation has been found to be superior to that of the 175-degrees-C commercial film adh esive.