Mixed-mode higher-order terms coefficients estimated using the over-deterministic method

Abstract eng:
The so-called ‘over-deterministic’ method (ODM) is applied on a mixed-mode configuration in order to determine higher-order terms coefficients of the Williams expansion approximating the stress and displacement fields in a cracked body. Results obtained agree very well to data found in literature (calculated by means of hybrid crack elements and boundary collocation method) and therefore further convergence studies are made in order to find some restrictions and recommendations corresponding to use of the ODM. Note, that more than five terms of the Williams expansions are considered and investigated in this contribution.

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