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RESEARCH PRODUCT
Mode I fracture toughness behaviour of epoxy resincarbon fiber composites cured by ionising radiation
G. PitarresiDavide TuminoS. AlessiA. NowickiG. Spadarosubject
Settore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineSettore CHIM/07 - Fondamenti Chimici Delle TecnologieRadiation Curing CFRP Delamination Fracture Toughness Dynamic Mechanical Thermal Analysis.description
In this work Mode I fracture toughness behavior of Electron Beam cured unidirectional CFRP laminates is investigated by means of standardized Double Cantilever Beam (DCB) tests. A matrix system, comprising a DGEBA epoxy monomer and a typical initiator of cationic polymerization, was used and panel samples assembled by hand lay-up. Curing was achieved by 20 to 40 minutes irradiation on a pulsed 10 MeV Electron Beam accelerator. One batch of resin was also mixed with 10 phr of a PES thermoplastic monomer in order to enhance the matrix toughness. The influence of fibre-matrix adhesion, matrix toughening and matrix crosslinking density on the mode I delamination behavior have been investigated by correlating the results of DCB and Dynamic Mechanical Thermal Analysis (DMTA) tests.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-01 |