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Sixth order analysis of crack closure in bending of an elastic plate

โœ Scribed by F. S. Heming

Publisher
Springer Netherlands
Year
1980
Tongue
English
Weight
838 KB
Volume
16
Category
Article
ISSN
1573-2673

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โœฆ Synopsis

The bending of a rectangular, elastic plate containing a central, through crack is analyzed. Results are obtained numerically via a finite element analysis based on the assumptions of Mindlin sixth order plate theory. A special feature of the analysis is the modeling of crack face interference, or closure, at the compression surface of the plate. Results are presented for two cases, one that includes the effects of closure and one that does not, and comparisons are made with prior results based on Kirchhoff theory. It is shown that proper modeling of the boundary conditions is essential for obtaining accurate, credible results and that the effects of closure are significant and must be included when demanded by the actual physical situation.

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