6533b86dfe1ef96bd12cab1f
RESEARCH PRODUCT
Infrared Thermography assisted evaluation of static and fatigue Mode II fracture toughness in FRP composites
Giuseppe PitarresiT. ScaliciGiuseppe Catalanottisubject
Materials science/dk/atira/pure/subjectarea/asjc/2200/220502 engineering and technologyPolymer Matrix CompositeStress (mechanics)Settore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineThermoelastic dampingFracture toughness0203 mechanical engineeringThermoelastic Stress Analysis/dk/atira/pure/subjectarea/asjc/2500/2503Composite materialFatigueDelamination Fracture ToughneMode IICivil and Structural EngineeringStrain energy release ratePolymer Matrix CompositesDelamination Fracture ToughnessDelaminationEpoxyFibre-reinforced plastic021001 nanoscience & nanotechnology020303 mechanical engineering & transportsvisual_artThermographyvisual_art.visual_art_mediumCeramics and Composites0210 nano-technologydescription
Abstract The work proposes the combined use of a Modified Transverse Crack Tension (MTCT) test coupon and Infrared Thermography, to evaluate the static and fatigue behaviour of Fibre Reinforced Polymer composites under Mode II delamination. Artificial delaminations starters are added to the TCT coupon, whose effects on the Strain Energy Release Rate are discussed. Infrared Thermography and Thermoelastic Stress Analysis are implemented to investigate stresses and delaminations growths on two FRP materials: a pre-preg IM7/8552 carbon fibre-epoxy and a glass-fibre reinforced epoxy laminates. The thermographic, thermoelastic and second harmonic signals have been obtained and used to monitor the onset of instable crack growth under monotonic loading, and the delamination growth under fatigue loading. The use of such full-field non-contact thermographic parameters allows a further and effective insight on the behaviour of TCT specimens, providing useful information for the characterisation of the Mode II delamination behaviour under both static and fatigue conditions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-10-01 |