Different modes of instability might occur in thin-walled stiffened shells. In particular, local shell and stringer buckling modes and global buckling mode might develop in axially stiffened cones. In this paper, such modes are studied in conical shells under axial compression through a linear eigenvalue finite element analysis. In order to examine buckling modes in isolation (in line with typical simplified formulae) as well as competing modes together, use is made of different finite element models, including discrete and smeared models. Changes of buckling modes are captured by varying stiffener slenderness, number of stiffeners and tapering angle, treated as design parameters. Some evidence of mode interaction is recorded by the clustering of eigenvalues/eigenmodes.

Different buckling modes in axially stiffened conical shells / Spagnoli, Andrea. - In: ENGINEERING STRUCTURES. - ISSN 0141-0296. - 23:(2001), pp. 957-965. [10.1016/S0141-0296(00)00112-7]

Different buckling modes in axially stiffened conical shells

SPAGNOLI, Andrea
2001-01-01

Abstract

Different modes of instability might occur in thin-walled stiffened shells. In particular, local shell and stringer buckling modes and global buckling mode might develop in axially stiffened cones. In this paper, such modes are studied in conical shells under axial compression through a linear eigenvalue finite element analysis. In order to examine buckling modes in isolation (in line with typical simplified formulae) as well as competing modes together, use is made of different finite element models, including discrete and smeared models. Changes of buckling modes are captured by varying stiffener slenderness, number of stiffeners and tapering angle, treated as design parameters. Some evidence of mode interaction is recorded by the clustering of eigenvalues/eigenmodes.
2001
Different buckling modes in axially stiffened conical shells / Spagnoli, Andrea. - In: ENGINEERING STRUCTURES. - ISSN 0141-0296. - 23:(2001), pp. 957-965. [10.1016/S0141-0296(00)00112-7]
File in questo prodotto:
File Dimensione Formato  
050_Engrg_Structures_2001.pdf

non disponibili

Tipologia: Documento in Post-print
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 196.69 kB
Formato Adobe PDF
196.69 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/1461903
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 29
  • ???jsp.display-item.citation.isi??? 21
social impact