A higher order displacement discontinuity method for three-dimensional elastostatic problems

Shou Keh-Jian Shou, E. Siebrits, S. L. Crouch

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

The three-dimensional constant strength displacement discontinuity method, as presented by Salamon, is based on a solution which expresses field stresses and displacements due to constant normal and shear displacement discontinuities over an elemental area in an elastic body. Following a two-dimensional development, a new three-dimensional higher order displacement discontinuity element is presented in this paper. The new higher order (bi-quadratic) approach is based on the use of nine collocation points spread over a nine element patch, centered at the source element. In addition, special crack tip element logic is developed which allows a more accurate calculation of the stress field near the crack tip.

Original languageEnglish (US)
Pages (from-to)317-322
Number of pages6
JournalInternational journal of rock mechanics and mining sciences & geomechanics abstracts
Volume34
Issue number2
DOIs
StatePublished - Feb 1997

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