A semi-analytical formulation is developed for the thermomechanical postbuckling analysis of innovative aerospace panels obtained by the combination of variable stiffness skins and curvilinear stringers. A formulation is proposed in conjunction with first-order shear deformation theory to model the skin and stiffeners. The nonlinear problem is formulated in the framework of the Ritz method and an iterative-incremental procedure is employed for the solution process. The results demonstrate the excellent level of accuracy guaranteed by the proposed method, making it an ideal candidate for gathering insight into the potential of innovative stiffened panels designed to operate in the postbuckling field.

Fast analysis of curvilinearly stiffened panels operating in the postbuckling field

Vescovini, R.;Foligno, P. P.
2023-01-01

Abstract

A semi-analytical formulation is developed for the thermomechanical postbuckling analysis of innovative aerospace panels obtained by the combination of variable stiffness skins and curvilinear stringers. A formulation is proposed in conjunction with first-order shear deformation theory to model the skin and stiffeners. The nonlinear problem is formulated in the framework of the Ritz method and an iterative-incremental procedure is employed for the solution process. The results demonstrate the excellent level of accuracy guaranteed by the proposed method, making it an ideal candidate for gathering insight into the potential of innovative stiffened panels designed to operate in the postbuckling field.
2023
Variable stiffness; curvilinear stiffeners; Ritz method; nonlinear analysis; postbuckling analysis
File in questo prodotto:
File Dimensione Formato  
VESCR_IP_03-22.pdf

Accesso riservato

: Publisher’s version
Dimensione 5.03 MB
Formato Adobe PDF
5.03 MB Adobe PDF   Visualizza/Apri
VESCR_OA_03-22.pdf

Open Access dal 17/11/2023

: Post-Print (DRAFT o Author’s Accepted Manuscript-AAM)
Dimensione 11.65 MB
Formato Adobe PDF
11.65 MB Adobe PDF Visualizza/Apri

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/11311/1223748
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 0
social impact