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Weight functions for crack problems using boundary element analysis

โœ Scribed by D.P. Rooke; M.H. Aliabadi

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
900 KB
Volume
6
Category
Article
ISSN
0955-7997

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โœฆ Synopsis

The use of weight functions is a well-established technique for the solution of mechanics problems in structural engineering. Increasing use of these techniques is being made to solve crack problems. The special feature of crack problems in elasticity is the presence of a singular stress field at the crack-tip. The incorporation of certain fundamental singular fields into the boundary element formulation enables weight functions for the stress intensity factors to be obtained on all the boundaries of a cracked body from a single boundary element calculation. With these weight functions the stress intensity factor for any loading on any boundary of the body can be obtained from a simple integration.

๐Ÿ“œ SIMILAR VOLUMES

Mixed-mode Bueckner weight functions usi
Mixed-mode Bueckner weight functions using boundary element analysis
โœ M. H. Aliabadi; D. P. Rooke; D. J. Cartwright ๐Ÿ“‚ Article ๐Ÿ“… 1987 ๐Ÿ› Springer Netherlands ๐ŸŒ English โš– 805 KB

A Bueckner singular displacement field is incorporated into the boundary element method in order to calculate weight functions for mixed mode stress intensity factor in a two-dimensional cracked body. Weight functions for modes I and II can be calculated independently and hence the factors K~ and KI