A mechanical model capable of taking into account the contribution of shear deformation on the lateral buckling behavior of open cross-sections pultruded FRP beams is presented. The total torsional rotation is divided into two parts: the first one, associated with axial warping and negligible shearing strains, the second one, associated entirely with shear strains. Through this approach it is therefore possible to consider with good approximation the shear strains, which are neglected by the classical Vlasov theory. The procedure is validated by comparing the results obtained via FEM with some numerical results available in literature. The effect of the normal to shear modulus ratio on the lateral buckling load is also investigated.

Lateral buckling of pultruded FRP beams

ASCIONE, Luigi;GIORDANO, ANTONELLA;SPADEA, SAVERIO
2011-01-01

Abstract

A mechanical model capable of taking into account the contribution of shear deformation on the lateral buckling behavior of open cross-sections pultruded FRP beams is presented. The total torsional rotation is divided into two parts: the first one, associated with axial warping and negligible shearing strains, the second one, associated entirely with shear strains. Through this approach it is therefore possible to consider with good approximation the shear strains, which are neglected by the classical Vlasov theory. The procedure is validated by comparing the results obtained via FEM with some numerical results available in literature. The effect of the normal to shear modulus ratio on the lateral buckling load is also investigated.
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: https://hdl.handle.net/11386/3137290
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact