Author(s)

W. Feng & S.V. Hoa

Abstract

A degenerated plate/shell element with assumed partial stress field for the analysis of laminated composites W. Feng, S.V. Hoa Concordia Centre for Composites, Department of Mechanical Engineering, Concordia University, Montreal, Quebec H3G IMS, Canada ABSTRACT A degenerated plate/shell element based on the combined energy variational principle and the equivalent single-layer model is proposed. The continuities of interlaminar stresses are satisfied at the interlaminar surface of laminated composites. In this work, the combined energy variational principle is used to overcome transverse stress continuity limitations of single-layer models; The traction free conditions are satisfied on the upper and lower surfaces of a laminate by assuming the transverse stress components independently; The iso-function method and the classification method of the stress modes are used to construct the assumed stress field. Two examples are presented to illustrate the efficiency

Keywords