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Large deflections of laminated beams with interlayer slips: Part 1: model development

P. Krawczyk (Laboratoire de Mécanique des Structures et Milieux Continus, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland)
F. Frey (Laboratoire de Mécanique des Structures et Milieux Continus, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland)
A.P. Zieliński (Institute of Machine Design, Cracow University of Technology, Kraków, Poland)

Engineering Computations

ISSN: 0264-4401

Article publication date: 9 January 2007

692

Abstract

Purpose

This paper aims to present development of a layer‐wise (LW) beam model for geometric nonlinear finite element analysis of laminated beams with partial layer interaction.

Design/methodology/approach

The model is built assuming first order shear deformation theory (FSDT) at layer level and moderate interlayer slips. LW kinematic, strain and stress fields are established in view of co‐rotational finite element formulation. Laminated beam equilibrium relations are developed in strong, weak and matrix form. A notion of interface shear stress is used to define layer interactions.

Findings

Through suitable choice of kinematic model the co‐rotational approach is shown to provide means of obtaining robust finite element formulation for geometric nonlinear analysis of laminated structures with interlayer slips.

Research limitations/implications

The proposed model is dedicated to geometric nonlinear finite element analysis of laminated beams undergoing large planar displacements, subject to small strains and moderate interlayer slips.

Originality/value

Novelty of the proposed approach is based on encompassing shear deformations in geometric nonlinear analysis of laminated beams with interlayer slips. Arbitrary number of layers is considered.

Keywords

Citation

Krawczyk, P., Frey, F. and Zieliński, A.P. (2007), "Large deflections of laminated beams with interlayer slips: Part 1: model development", Engineering Computations, Vol. 24 No. 1, pp. 17-32. https://doi.org/10.1108/02644400710718556

Publisher

:

Emerald Group Publishing Limited

Copyright © 2007, Emerald Group Publishing Limited

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