Title

An approach for failure analysis of composite bridge deck systems with openings

Authors

Authors

L. Zhao;V. M. Karbhari

Comments

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Abbreviated Journal Title

Struct. Eng. Mech.

Keywords

decks; finite element analysis; cutout; stress concentration; first-ply; failure; Engineering, Civil; Engineering, Mechanical

Abstract

Design details pertaining to the connection between some recently developed fiber reinforced polymer (FRP) composite deck systems and the supporting girders require openings through cells of the deck. This significantly changes the stress distribution in these components. As a result, the conventional assumptions that deck designs are controlled by their stiffness, and not strength, needs a closer examination. This paper proposes an analytical method to investigate the stress states and failure mechanisms using a type of "global-local" modeling perspective, incorporating classical lamination theory and first ply failure criterion with use of appropriate stress concentration factors around the cutouts. The use of a "smeared-stress" approach is presented as a potential means of simplifying certain FRP specific complexities, while still enabling prediction of overall failure.

Journal Title

Structural Engineering and Mechanics

Volume

20

Issue/Number

1

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

123

Last Page

141

WOS Identifier

WOS:000229795500007

ISSN

1225-4568

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