In this work the Mode I fracture toughness behavior of unidirectional CFRP laminates is investigated by means of Double Cantilever Beam (DCB) tests. The composite samples were manufactured by thermal curing after impregnation of a Carbon fabric with a DGEBA epoxy and anhydride HHPA curing agent. One resin batch was also mixed with a PES thermoplastic monomer to enhance the matrix toughness. Two lots of samples, toughened and un-toughened, were then left to soak in hot water to achieve various degrees of aging. The influence of matrix toughening and hydrothermal aging on the delamination behavior of the composite have then been assessed and correlated with characterization data from Dynamic Mechanical Thermal Analysis (DMTA) and Scanning Electron Microscopy (SEM).

Alessi, S., Pitarresi, G., Spadaro, G., Tumino, D. (2012). Mode I fracture toughness behavior of hydro-thermally aged carbon fibre reinforced DGEBA-HHPA-PES systems. In 6th INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS (TOP)& COMPOSITES (pp.117-119).

Mode I fracture toughness behavior of hydro-thermally aged carbon fibre reinforced DGEBA-HHPA-PES systems

ALESSI, Sabina;PITARRESI, Giuseppe;SPADARO, Giuseppe;
2012-01-01

Abstract

In this work the Mode I fracture toughness behavior of unidirectional CFRP laminates is investigated by means of Double Cantilever Beam (DCB) tests. The composite samples were manufactured by thermal curing after impregnation of a Carbon fabric with a DGEBA epoxy and anhydride HHPA curing agent. One resin batch was also mixed with a PES thermoplastic monomer to enhance the matrix toughness. Two lots of samples, toughened and un-toughened, were then left to soak in hot water to achieve various degrees of aging. The influence of matrix toughening and hydrothermal aging on the delamination behavior of the composite have then been assessed and correlated with characterization data from Dynamic Mechanical Thermal Analysis (DMTA) and Scanning Electron Microscopy (SEM).
Settore ING-IND/22 - Scienza E Tecnologia Dei Materiali
13-giu-2012
6th INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS (TOP)& COMPOSITES
Ischia (Napoli)
10-14 Giugno 2012
3
Alessi, S., Pitarresi, G., Spadaro, G., Tumino, D. (2012). Mode I fracture toughness behavior of hydro-thermally aged carbon fibre reinforced DGEBA-HHPA-PES systems. In 6th INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS (TOP)& COMPOSITES (pp.117-119).
Proceedings (atti dei congressi)
Alessi, S.; Pitarresi, G.; Spadaro, G.; Tumino, D.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/64284
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