FraMCoS 5 2004 Vail, Colorado, USA

A Discrete Strong Embedded Discontinuity Approach

Inthispaper,anewformulationforstrongembeddeddiscontinuitiesis introduced,designated as the discrete strong embedded discontinuity approach (DSDA). The approximated displacement field is discontinuous across the embedded discontinuity and the jumps are obtained at additional nodes, located at both faces of the discontinuity surface. As a consequence: i)…

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Year 2004
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Abstract

Inthispaper,anewformulationforstrongembeddeddiscontinuitiesis introduced,designated as the discrete strong embedded discontinuity approach (DSDA). The approximated displacement field is discontinuous across the embedded discontinuity and the jumps are obtained at additional nodes, located at both faces of the discontinuity surface. As a consequence: i) the jump displacement field no longer has to be homogeneous within each element and ii) the jump displacement field is continuous across element boundaries. The present formulation is compared with other discontinuous approaches, namely the discrete approach with interface elements, the partition of unity method and other strong embedded discontinuity formulations.