A theory for laminated composite shells and a finite element model of such structures are presented. Due to a flexibie layer-wise description of the displacement field, the given theory accounts for an accurate description of shear and transverse stretching deformations. Use is made of a penalty technique to enforce the perfect bonding between adjacent layers, by generalizing previous results for one-dimensional elements. Several numerical results dealing with simply supported laminated spherical shells are presented, showing the main features of the proposed theory and its accuracy in predicting the through-the-thickness stress distribution.
A penalty model for the analysis of laminated composite shells
FRATERNALI, Fernando;
1993
Abstract
A theory for laminated composite shells and a finite element model of such structures are presented. Due to a flexibie layer-wise description of the displacement field, the given theory accounts for an accurate description of shear and transverse stretching deformations. Use is made of a penalty technique to enforce the perfect bonding between adjacent layers, by generalizing previous results for one-dimensional elements. Several numerical results dealing with simply supported laminated spherical shells are presented, showing the main features of the proposed theory and its accuracy in predicting the through-the-thickness stress distribution.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
