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Interaction of part-through cracks in a flat plateThe accuracy of the line spring model is determined. The effect of interaction between two and three cracks is investigated, and extensive numerical results which may be useful in applications are provided. Line spring model with Reissner's plate theory is formulated to be used for any number and configurations of cracks provided that there is symmetry. This model is used to find stress intensity factors for elliptic internal cracks, elliptic edge cracks and two opposite elliptic edge cracks. Despite the simplicity of the line spring model, the results are found to be close.
Document ID
19850013382
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Aksel, B. (Lehigh Univ. Bethlehem, PA, United States)
Erdogan, F. (Lehigh Univ. Bethlehem, PA, United States)
Date Acquired
September 5, 2013
Publication Date
April 1, 1985
Subject Category
Structural Mechanics
Report/Patent Number
NASA-CR-177926
NAS 1.26:177926
Accession Number
85N21692
Funding Number(s)
CONTRACT_GRANT: NGR39-007-011
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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