Further developments in stress initialization in geomechanics via FEM and a two-step procedure involving airy functions

Cita com:
hdl:2117/180962
Document typeConference report
Defense date2017
PublisherCIMNE
Rights accessOpen Access
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Abstract
The in-situ stress field in rock masses is a key aspect when a numerical analysis of a rock mass is carried out in any area of geo-engineering, such as civil, mining, or Oil & Gas. A method for the numerical generation of the in-situ stress state in the FE context, based on Airy stress functions was previously introduced. It involves two steps: 1) an estimate of the stress state at each Gauss point is generated, and 2) global equilibrium is verified and re-balancing nodal forces are applied as needed. In this paper, new developments towards improving the accuracy of the stress proposal are discussed. A real application example has been used to illustrate the results achieved with the new implementation.
ISBN978-84-946909-6-9
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