A&met-The paper deals with the &rite element computation of the crack closure integrals (CCIs) and the stress intensity factors (SIFs) under mechanical and/or thermal loadings, which give rise to forces at nodes close to a crack tip region. Four examples are presented to illustrate the usefulness of
A finite element calculation of stress intensity factors by a modified crack closure integral
β Scribed by E.F. Rybicki; M.F. Kanninen
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 595 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0013-7944
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## Abstract Finite element methods are used to calculate the stress intensity factors for threeβdimensional geometries containing a number of depths of crack subjected to various loads. Special elements are used at the tip to represent the variation of the displacement with respect to the square ro
modified crack closure integral method with square-root stress singularity elements is given for calculation of strain energy release rate for an in-plane extension of a crack. Case studies are presented to illustrate the improvement in accuracy.
Plates with centraI through cracks subjected to bending is analysed taking into account the closure of ihe crack faces on the compression side. A r~ee-dimension finite element method emplo~g t~ee~~ensjon~ degenerate SOB element is used for the amdysis. The crack faces have been mode&d such that they