Skip to main content
Vai all'homepage della Commissione europea (si apre in una nuova finestra)
italiano italiano
CORDIS - Risultati della ricerca dell’UE
CORDIS
Contenuto archiviato il 2024-06-10

Adaptive Composite Delamination Modelling

Obiettivo



The increased use of composite materials in industry, for example in the design of aircraft, helicopters, ships, trains, offshore structures, civil infrastructures, helmets, bicycles, biomedical implants, rackets, skis, etc., requires a detailed understanding of the behaviour of such composite components and structures to a wide range of potential loading. Components and structures using high performance long fibre composites are invariably laminated, and therefore very vulnerable to delamination since through thickness strengths are typically less than a thirtieth of the in plane strength. This hidden menace of Barely Visible Impact Damage (BVID) can reduce compression strength by more than 60%.

The maximum potential benefits derived from utilising composites rather than more traditional materials is at present severely limited by the enormous uncertainties in the design procedure, especially the damage tolerance, and are undoubtedly an obstacle to a more
widespread, cheaper and safer use of these materials. Potentially there are huge capital and lifecycle savings to be made by employing composite materials more economically and by reducing the
unnecessarily high factors of safety and over design which are currently in use.

The main thrust of the proposal is to develop a robust, mesh insensitive, generic delamination prediction algorithms. These improved delamination algorithms will be coupled to an optimum adaptive re meshing strategy, which uses IGES surface CAD information as a starting point.

The specific objectives are:

the development of an in plane 'intelligent' adaptive re meshing algorithm for the treatment of localisation in a physically realistic fashion. The algorithm will allow for automatic (rather than by predetermining the) location and refinement of the mesh at relevant sites throughout the FE mesh, without user intervention.
the development an out of plane 'intelligent' adaptive re meshing algorithm, which following convergence from the any in plane adaptive algorithm (initial stage), will introduce where necessary additional elements in the through thickness direction, again without user intervention.
to perform fatigue and impact testing for a range of potential laminated thermoset and thermoplastic composite coupon and small structural samples.
the development of reliable, more accurate and improved delamination models based on comprehensive numerical simulation for a range of advanced thermoset and thermoplastic composites. The ability to correctly predict localisation phenomena, and size effects is consider an important parameter.
to explore the use of statistical and probabilistic arguments for (i) adaptive re meshing and (ii) material variability in delamination modelling.
to demonstrate the accuracy of the algorithms by comparing the numerical results extensive laboratory experimental test results.
All designers and users of composite materials acknowledge the inability of existing analysis methodologies to accurately predict the development of damage in their products. The proposed developments will be a major advance in overcoming this severe limitation, and will allow European industry to participate fully in a rapidlyevolving area that is set to expand dramatically in the new millennium and beyond.

Campo scientifico (EuroSciVoc)

CORDIS classifica i progetti con EuroSciVoc, una tassonomia multilingue dei campi scientifici, attraverso un processo semi-automatico basato su tecniche NLP. Cfr.: Il Vocabolario Scientifico Europeo.

È necessario effettuare l’accesso o registrarsi per utilizzare questa funzione

Programma(i)

Programmi di finanziamento pluriennali che definiscono le priorità dell’UE in materia di ricerca e innovazione.

Argomento(i)

Gli inviti a presentare proposte sono suddivisi per argomenti. Un argomento definisce un’area o un tema specifico per il quale i candidati possono presentare proposte. La descrizione di un argomento comprende il suo ambito specifico e l’impatto previsto del progetto finanziato.

Invito a presentare proposte

Procedura per invitare i candidati a presentare proposte di progetti, con l’obiettivo di ricevere finanziamenti dall’UE.

Dati non disponibili

Meccanismo di finanziamento

Meccanismo di finanziamento (o «Tipo di azione») all’interno di un programma con caratteristiche comuni. Specifica: l’ambito di ciò che viene finanziato; il tasso di rimborso; i criteri di valutazione specifici per qualificarsi per il finanziamento; l’uso di forme semplificate di costi come gli importi forfettari.

CSC - Cost-sharing contracts

Coordinatore

Secretary of State for Defence - Ministry of Defence
Contributo UE
Nessun dato
Indirizzo
Ively Road
GU14 0LX Farnborough - Hampshire
Regno Unito

Mostra sulla mappa

Costo totale

I costi totali sostenuti dall’organizzazione per partecipare al progetto, compresi i costi diretti e indiretti. Questo importo è un sottoinsieme del bilancio complessivo del progetto.

Nessun dato

Partecipanti (7)

Il mio fascicolo 0 0