Singularities occurring in shear deformable beams due to the presence of cracks cracks are considered and modelled as Dirac’s deltas. The latter model is exploited to account for the shear deformability of the beam with multiple cracks and in presence of an axial load. The governing stability equations are proposed, under the hypothesis that cracks do not undergo the closure phenomenon, and they are integrated to obtain the explicit closed form expression of the buckling load equation and the relevant buckling modes. The presented solution is able to capture, besides compressive, also buckling under tensile load.

Buckling of shear deformable beams with singularities

CADDEMI, Salvatore;CALIO', Ivo Domenico;Cannizzaro F.
2013

Abstract

Singularities occurring in shear deformable beams due to the presence of cracks cracks are considered and modelled as Dirac’s deltas. The latter model is exploited to account for the shear deformability of the beam with multiple cracks and in presence of an axial load. The governing stability equations are proposed, under the hypothesis that cracks do not undergo the closure phenomenon, and they are integrated to obtain the explicit closed form expression of the buckling load equation and the relevant buckling modes. The presented solution is able to capture, besides compressive, also buckling under tensile load.
978-88-8239-183-6
Buckling; Timoshenko beam; Singularity
File in questo prodotto:
Non ci sono file associati a questo prodotto.

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: http://hdl.handle.net/20.500.11769/75166
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact