Numerical Investigations of the Laminating Effect in Laminated Beams
Publication: Journal of Structural Engineering
Volume 125, Issue 7
Abstract
The paper presents numerical results concerning the so-called laminating effect of laminated beams. Using the finite-element method, it is shown that the assumption often made of a stress redistribution taking place around weak zones is not necessarily true. A fracture mechanics approach to a possible explanation for the laminating effect is also presented. Here a nonlinear fracture mechanics model is used to verify a hand-calculation formula based on linear elastic fracture mechanics. An important outcome is that, for an initially cracked laminated beam, the failure mode tends to be dominated by shear failure in the outermost lamination as the lamination thickness decreases.
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References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 125 • Issue 7 • July 1999
Pages: 740 - 745
History
Received: May 13, 1998
Published online: Jul 1, 1999
Published in print: Jul 1999
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