Descrizione del progetto
Metodi avanzati a sostegno di compositi migliorati per il settore aerospaziale
I compositi hanno consentito progressi significativi nelle proprietà dei materiali per una varietà di applicazioni. Nel settore aerospaziale, i compositi hanno agevolato prestazioni migliorate e ridotto peso, consumo di carburante ed emissioni. Per creare i «pre-impregnati» vengono utilizzati molti processi di produzione diversi in cui le fibre di rinforzo sono pre-impregnate con la resina che le lega. Nuove tecniche per infondere la resina potrebbero ridurre la probabilità di guasto nelle condizioni di carico previste. Il progetto SOFIA, finanziato dall’UE, svilupperà metodi di prova avanzati per valutare le prestazioni di tecniche di infusione innovative in componenti aerospaziali finiti. I modelli agevoleranno la caratterizzazione analitica dei comportamenti dei componenti e delle modalità di guasto.
Obiettivo
“Test Methods for analySis OF Infusion pAnels” (SOFIA)
Novel infusion technique could have different implications than classical pre-preg technologies. To increase the robustness in the early design and subsequent Certification Phases of the component is a challenge. The confidence in this technology must be tackle with the analysis and development of new test methods.
To comply with this task, the project is focused in three main levels:
- A presizing of the component as the initial phase to determine the expected failure modes (FM). This step is the basis to evaluate the behavior of the component under applied loads (combined loading state) and the definition of Level 2 and 3 tests
- Level 2 are the characterization of the FM. The first step is to define these expected mechanical FM that will be analyzed. This phase has a significant importance as the classical mechanisms of failure associated with the use of pre-pregs may be altered by the new infusion manufacturing process. The Test plan definition, tooling design and manufacturing, mathematical approaches to be used, test execution and the correlation of the analytical results (developed FEM and / or mathematical laws to predict behavior) with real test results are the main tasks of this stage. This failure mode characterization is the basis for the definition of the behavior of the subcomponent for the next stage.
- Level 3 is the validation of the analytical characterization of the FM and the subcomponent global behavior. Non-linear FEM with cohesive elements and Virtual Crack Closure Technique will be developed. The numerical predictions, the test plan definition, tooling design and manufacturing, test execution and the correlation of the expected results vs real test results, are the main tasks of this stage.
In addition of this project, if necessary, it is offered to the Topic Manager the possibility for the manufacturing of complementary coupons at any stage of the Project.
Campo scientifico
Parole chiave
Programma(i)
Meccanismo di finanziamento
IA - Innovation actionCoordinatore
41300 LA RINCONADA SEVILLA
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