A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mechanical hinge system for delamination tests in beam-type composite specimens
During the experimental study of composite delaminations external loads are usually applied by means of steel or aluminium parts bonded to the surface of beam-type specimens. The bonded joints between the metallic parts and the composite specimen might fail, especially when the tests are carried out under extreme temperatures or fatigue conditions. In addition, the point of application of the external load does not coincide with the neutral axis of the specimen beam, inducing non-linear effects that can lead, for example, to incorrect estimations of fracture toughness. In this paper, the relative importance of the non-linear effects in delamination tests is evaluated and the corresponding correction factors discussed. Next, the design of an improved mechanical hinge that avoids non-linear effects, eliminates bonded joints and can be adapted to different specimen thicknesses is introduced.
Mechanical hinge system for delamination tests in beam-type composite specimens
During the experimental study of composite delaminations external loads are usually applied by means of steel or aluminium parts bonded to the surface of beam-type specimens. The bonded joints between the metallic parts and the composite specimen might fail, especially when the tests are carried out under extreme temperatures or fatigue conditions. In addition, the point of application of the external load does not coincide with the neutral axis of the specimen beam, inducing non-linear effects that can lead, for example, to incorrect estimations of fracture toughness. In this paper, the relative importance of the non-linear effects in delamination tests is evaluated and the corresponding correction factors discussed. Next, the design of an improved mechanical hinge that avoids non-linear effects, eliminates bonded joints and can be adapted to different specimen thicknesses is introduced.
Mechanical hinge system for delamination tests in beam-type composite specimens
Blanco, N. (author) / Gamstedt, E.K. (author) / Costa, J. (author)
Composites Science and Technology ; 68 ; 1837-1842
2008
6 Seiten, 5 Bilder, 1 Tabelle, 15 Quellen
Article (Journal)
English
Außendruck , Biegebeanspruchung , Biegeprüfung , Bruchzähigkeit , Delaminierung (Schichtablösung) , Flansch (Verbindungselement) , Haftfestigkeit , Haltevorrichtung , mechanische Beanspruchung , mechanisches Verbinden , Messen mechanischer Größen , Messmethode , Nichtlinearität , Polymermatrix-Verbundwerkstoff , Scharnier , Träger (Bauwesen)
Mechanical hinge system for delamination tests in beam-type composite specimens
| British Library Online Contents | 2008
Side Clamped Beam (SCB) hinge system for delamination tests in beam-type composite specimens
| British Library Online Contents | 2011
Improved analysis of unidirectional composite delamination specimens
| British Library Online Contents | 2007
Delamination characteristics of double-cantilever beam and end-notched flexure composite specimens
| British Library Online Contents | 1996
Progressive delamination and fiber bridging modeling in double cantilever beam composite specimens
| British Library Online Contents | 2001