Carbon-epoxy laminated cylindrical shells under axial compression
Carbon-epoxy laminated cylindrical shells under axial compression
- Neue Suche nach: Bisagni, C.
- Neue Suche nach: Bisagni, C.
This work is part of a research project aimed at improving the knowledge of the buckling phenomena of composite shells. Experimental buckling tests are performed on laminated cylindrical shells under axial compression, by a loading rig controlled in displacement. The shells, fabricated by AGUSTA, are laminated with carbon fabric layers embedded into an epoxy resin matrix and present two different types of a lay-up orientation: (0deg/45deg/-45deg/0deg) and (45deg/-45deg/-45deg/45deg). The buckling phenomena is numerically studied, taking into account the effect of the geometric imperfections, by three finite element codes: MARC, ABAQUS and ABAQUS/EXPLICIT. Using the implicit codes, the buckling has been analysed by the eigenvalue analysis and the non-linear Riks method. The explicit code has allowed to investigate the load-displacement curve, even in the post-buckling region, simulating the dynamics of a slow compression test. Afterwards, the first results obtained by the numerical simulation of a experimental bucklinmg test are presented here.
Dokumentinformationen
Carbon-epoxy laminated cylindrical shells under axial compression
1997
10 Seiten, 22 Bilder, 8 Tabellen, 13 Quellen
Aufsatz (Konferenz)
Englisch
Wölbung , Ausbeulung , Verformung , Biegebeanspruchung , Schale (Flächentragwerk) , Verbundwerkstoff , Matrix (Grundmasse) , Carbonfaser , carbonfaserverstärkter Kunststoff , Epoxidharz , Laminieren (Mehrschichtstoff) , Axialkraft , Finite-Elemente-Methode , Eigenwert , Hubschrauber , Rotor (Drehflügel)