Delamination Analysis of Layered Structures with Residual Stresses and Transverse Shear Deformation
Publication: Journal of Engineering Mechanics
Volume 139, Issue 11
Abstract
This study presents an interface fracture mechanics analysis of delamination failure in a multilayered beam subject to general mechanical loads and residual stresses. Analytical solutions of the energy release rate and its phase angle are obtained through a crack-tip-element analysis. Both the transverse shear and thermal residual stresses, as well as their coupling effect, are included in these solutions. Representative interface fracture specimens are analyzed using these new solutions as well as an existing one. Excellent agreement with finite-element analysis has been achieved by the present solutions, whereas the existing solution underestimates the total energy release rate significantly, because it neglects the transverse shear forces. This suggests that the present solutions can significantly enhance the accuracy of the total energy release rate and its phase angle for an interface crack in multilayered structures.
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Acknowledgments
This study was supported by the National Science Foundation (Grant No. CMMI-0927938 under program director Dr. Yick Grace Hsuan).
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 139 • Issue 11 • November 2013
Pages: 1627 - 1635
Copyright
© 2013 American Society of Civil Engineers.
History
Received: May 12, 2010
Accepted: Nov 1, 2012
Published online: Nov 3, 2012
Published in print: Nov 1, 2013
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