A Triangular Thin Shell Element for the Linear Analysis of Stiffened Composite Structures

A three node flat shell element with six engineering displacement degree-of-freedom at each node is developed. The basic formulation allows for the arbitrary location of the reference surface in which the membrane forces and bending moments are fully coupled. The well-known, highly accurate, DKT ben...

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Bibliographic Details
Main Authors: Wilson, Edward, Cantin, Gilles
Format: Report
Language:English
Subjects:
ACCURACY
BEHAVIOR
BENDING
BENDING MOMENTS
COMPARISON
COMPOSITE STRUCTURES
CONSISTENCY
DEGREES OF FREEDOM
DISPLACEMENT
ENGINEERING
FORMULATIONS
Laminates and Composite Materials
LINEAR SYSTEMS
MATHEMATICAL ANALYSIS
MEMBRANES
PE62323N
ROTATION
SHELLS(STRUCTURAL FORMS)
STIFFENING
Structural Engineering and Building Technology
SURFACES
THIN SHELLS
THINNESS
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Summary:A three node flat shell element with six engineering displacement degree-of-freedom at each node is developed. The basic formulation allows for the arbitrary location of the reference surface in which the membrane forces and bending moments are fully coupled. The well-known, highly accurate, DKT bending element is combined with a higher order membrane element in order to obtain a consistent formulation. The higher order membrane behavior is obtained by the introduction of three additional normal rotational degree-of-freedom. This report presents a summary of the theoretical steps involved in the development of the element. The accuracy of the element is illustrated by the solution of several standard problems and a comparison of results with other thin shell elements.