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An analytical investigation of delamination front curvature in double cantilever beam specimensAn analytical investigation is conducted to determine the shape of a growing delamination and the distribution of the energy release rate along the delamination front in a laminated composite double cantilever beam specimen. Distributions of the energy release rate for specimens with straight delamination fronts and delamination front contours for delaminations whose growth is governed by the fracture criterion that G = Gc at all points are predicted as a function of material properties and delamination length. The predicted delamination front contours are utilized to ascertain the effect of the changing shape of the delamination front on the value of the critical strain energy release rate as computed from double cantilever beam fracture toughness test data.
Document ID
19910031516
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Davidson, B. D.
(Syracuse University NY, United States)
Date Acquired
August 15, 2013
Publication Date
November 1, 1990
Publication Information
Publication: Journal of Composite Materials
Volume: 24
ISSN: 0021-9983
Subject Category
Structural Mechanics
Accession Number
91A16139
Distribution Limits
Public
Copyright
Other

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