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Publikacje Pracowników Politechniki Lubelskiej
Status:
Autorzy: Jakubczak Patryk, Bieniaś Jarosław, Surowska Barbara, Ostapiuk Monika, Majerski Krzysztof
Rok wydania: 2012
Język: angielski
Źródło: 7th International Conference "Supply on the Wings" Aerospace - a leading innovator, 6-8.11.2012, Frankfurt/Main, Germany
Państwo wystąpienia: POLSKA
Efekt badań statutowych NIE
Abstrakty: angielski
Fiber metal laminates ore new kind of hybrid materials, good for advanced aerospace structural applications due to their high mechanical properties. These materials hove high fotigue strength, low weight, good impact resistance etc. The study is characterized resistance to low-velocity impact of hybrid laminates based on aluminum alloys connected with carbon/epoxy composite (AI/CFRP) or glass/epoxy composite (AI/GFRP). Tested laminates were prepared by autoclave method, which provides the best possible and repeatable quality of composites materials. Laminates were characterized in terms of a comparison of their impact resistance between them and according to different amount of metal layers and different layers configurations under different energy levels. The laminates response to low velocity impact using hemispherical impactor (diameter 12.7mm) were analyzed. On this basis was determinate dependences of the damage area and maximum depth of deformation depending on the layers configurations and amount of it under energy levels. Besides that the failure was analyzed with stereomicroscope. It was noted, that used FML are innovative materials characterized by high low-veloclty impact resistance because of superior properties of both metals and fibrous composite materials with a strong adhesion bonding. AI/GFRP laminates have better low-velocity impact resistance then AI/CFRP The generally failure mechanism matrix cracking and delaminations in the polymer composite and at the aluminum/composite interface may be observed, higher complexity limits the damage and nonlinear improves impact resistance. Metal volume fraction has important meaning when designing FML laminates as a materials with high resistant to low-velocity impact.