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A simplified approach to strain energy release rate computations for interlaminar fracture of compositesA simple approach for the strain energy release rate computations based on the finite element method and a singular fitting model is presented. The model uses the stress and displacement distributions at the delamination front. The method is applied to a mixed-mode double cracked-lap-shear composite configuration. The strain energy release rate components predicted by the model are compared with the finite element crack-closure method. The effect of the mesh size on the stress and displacement distribution is isolated. The strain energy release rates predicted by relatively coarse mesh sizes are in good agreement with the finite element crack closure method.
Document ID
19900031313
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Armanios, Erian A.
(Georgia Institute of Technology Atlanta, United States)
Rehfield, Lawrence W.
(California, University Davis, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Structural Mechanics
Meeting Information
Meeting: Japan-U.S. Conference on Composite Materials
Location: Washington, DC
Country: United States
Start Date: June 27, 1988
End Date: June 29, 1988
Sponsors: American Society for Composites, ASME, University of Delaware
Accession Number
90A18368
Funding Number(s)
CONTRACT_GRANT: NAG1-637
Distribution Limits
Public
Copyright
Other

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