Low velocity impact damage in glass / polyester composite sandwich panels

• Autorzy: Lendze T. , Wojtyra R. , Guillaumat L. , Biateau C. , Imielińska K.
• Języki publikacji: EN

Abstrakty

EN

Impact resistance of glass/polyester facesheets/PVC foam core sandwich structures was primarily assessed in terms of skin-/core bonding efficiency using two types of adhesives and bonding with uncured resin. Also, the air-coupled ultrasonic C-scan technique was estimated as a means of characterizing impact damage size in sandwich structures. The following observations were made. The impact damage size estimated by visual inspection was much more extensive in all samples, which is due to the C-scan images showing only the overlapping delaminations area directly under the impact site, whereas the visual inspection of the laminate surface and macroscopic observations of the sample section show the extent of the largest, single delamination. The least extensive damage size was found in the two-phase high-density adhesive samples showing also the highest tendency for core cracking. In contrast, the “pinkglue” adhesive, which is low-density due to the presence of the microspheres provides greater local flexibility which prevented core craking.

Słowa kluczowe

EN

sandwich structures; durability; impact behaviour; scanning electron microscopy (SEM); glass fibre composites

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2006
• Tom: Vol. 6, nr 1
• Strony: 26--34
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Lendze T.

autor

Wojtyra R.

autor

Guillaumat L.

autor

Biateau C.

autor

Imielińska K.

• Michelin Polska, Olsztyn, Poland

Bibliografia

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• 9. Lendze T., Low-velocity impact damage and uhrasonic C-scan technique in glass/polyesler composite sandwich panels, Master degree diploma report, Gdańsk University of Technology, Universite Bordeaux, l, 2005.
• 10. Imielińska K., Wojtyra R., Udarowe pękanie hybrydowych kompozytów epoksydowych zbrojonych włóknami szklanymi, węglowymi i aramidowymi, Inżynieria Materiałowa, 24 nr 3(134) (2003), pp. 127-134.
• 11. Imielińska K., Castaings M., Wojtyra R., Haras J., Le Clezio E., Hosten B., Air-coupled uhrasonic C-scan technique in impact response testing of carbon fibre and hybrid: glass, carbon and Kevlar/epoxy composites, Journal of Materials Processing and Technology, 2004, Vol. 157-158, pp. 513-522.
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