Non-linear analysis of sandwich shells: the effect of core plasticity

✍ Scribed by A.J.M Ferreira; J.T Barbosa; A.T Marques; J.C De Sá

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 331 KB
• Volume: 76
• Category: Article
• ISSN: 0045-7949
• DOI: 10.1016/s0045-7949(99)00156-x

✦ Synopsis

A non-linear formulation for general, arbitrary, sandwich shells is presented. The formulation accounts for geometric and material non-linear behavior of the shell. The core plasticity is assessed. The ®rst order shear deformation theory is presented as far as the kinematics are concerned. The analysis is based on the displacement formulation of the ®nite element method and uses the Ahmad shell element with ®ve degrees of freedom per node. The approach is discussed, particularly with reference to a cylindrical shell subjected to transverse load that causes snap buckling.