Descrizione del progetto
Messi alla prova i nuovi materiali più «caldi» per il settore aerospaziale
Il settore aerospaziale europeo utilizza compositi plastici termoindurenti leggeri e ad alte prestazioni in molte applicazioni. Più recentemente, i materiali termoplastici hanno attirato l’attenzione come alternativa ai materiali plastici termoindurenti, in quanto possono essere nuovamente fusi, rimodellati, rilavorati e riciclati. Le plastiche termoindurenti, oltre a ridurre la recuperabilità, richiedono una fase di polimerizzazione supplementare per indurire e solidificare. Data la loro capacità di fondere e deformare se riscaldate, per sfruttare appieno le termoplastiche nell’industria aerospaziale, è importante caratterizzarne il comportamento quando sono sottoposte a calore, fuoco e carico meccanico. HITCOMP sta sviluppando un laboratorio di prova pratica per la valutazione dei materiali, i cui dati serviranno da modello agli elementi finiti per supportare le prove virtuali delle termoplastiche rispetto alle plastiche termoindurenti convenzionali a base epossidica attualmente utilizzate.
Obiettivo
Heat and fire cause more damage on composites than on metallic counterparts. In order to improve the current epoxy based composites behavior under thermal affection, an alternative is going be addressed: thermoplastic composites.
Additionally, the sector is making a transition to a more electric aircraft, increasing the thermal affection on the structure since the number of heat & fire sources.
Hence, there are several reasons behind the drastic shift from aluminum and steel to thermoplastics: weight reduction, better fuel economy and lower operation costs, emissions reduction, corrosion and fatigue resistance or, in some cases, flame resistance and retardancy .
The framework of this topic is AIRFRAME ITD Work Package B-2.1 and B-2.2 whose objective is to achieve lighter and more cost effective structures. In this line, current tendency at A/C level is to increase the structural contribution of the more efficient composites substituting metallic structures, developing fuselages with optimized usage of volume and minimized weight, cost and environmental impact.
Under this framework, the research project HITCOMP aims to characterize the behaviour, under fire and thermal affection, of new high performance thermoplastic composites based on PAEK family resins, for comparison to the current thermoset, epoxy based, composites. HITCOMP aims as well to establish an innovative methodology allowing an affordable characterization of thermoplastics and the prediction of their behaviour and resistence when submitted to fire or high temperature events and to mechanical load. For this purpose, a thermo-mechanical model based on FEM permitting an innovative “virtual” characterization of specimens will be developed. An innovative testing lab based on two co-registrated IR cameras will be developed too. It will allow accurate, non-intrusive measurements of the actual temperature of both sides of the samples during the fire tests and for the adjustment and validation of the model.
Campo scientifico
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsensorsoptical sensors
- engineering and technologymaterials engineeringcomposites
- engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraft
- engineering and technologyenvironmental engineeringenergy and fuels
Programma(i)
Meccanismo di finanziamento
CS2-RIA - Research and Innovation actionCoordinatore
28903 Getafe (Madrid)
Spagna