MODELING OF THICK COMPOSITES USING A LAYERWISE LAMINATE THEORY Academic Article

abstract

• AbstractThe layerwise laminate theory of Reddy1 is used to develop a layerwise, twodimensional, displacementbased, finite element model of laminated composite plates that assumes a piecewise continuous distribution of the tranverse strains through the laminate thickness. The resulting layerwise finite element model is capable of computing interlaminar stresses and other localized effects with the same level of accuracy as a conventional 3D finite element model. Although the total number of degrees of freedom are comparable in both models, the layerwise model maintains a 2Dtype data structure that provides several advantages over a conventional 3D finite element model, e.g. simplified input data, ease of mesh alteration, and faster element stiffness matrix formulation. Two sample problems are provided to illustrate the accuracy of the present model in computing interlaminar stresses for laminates in bending and extension.

authors

• Reddy, Junuthula

published proceedings

• INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING

author list (cited authors)

• ROBBINS, D. H., & REDDY, J. N.

citation count

• 397

complete list of authors

• ROBBINS, DH||REDDY, JN

publication date

• February 1993

publisher

• Wiley  Publisher

keywords

• 40 Engineering
• 4001 Aerospace Engineering
• 4016 Materials Engineering

Digital Object Identifier (DOI)

• 10.1002/nme.1620360407

start page

• 655

end page

• 677

volume

• 36

issue

• 4

URL

• http://dx.doi.org/10.1002/nme.1620360407