Reuleaux plasticity: Analytical backward Euler stress integration and consistent tangent

@inproceedings{Coombs2010ReuleauxPA,
  title={Reuleaux plasticity: Analytical backward Euler stress integration and consistent tangent},
  author={William M. Coombs and Roger S. Crouch and Charles Augarde},
  year={2010}
}
Analytical backward Euler stress integration is presented for a deviatoric yielding criterion based on a modified Reuleaux triangle. The criterion is applied to a cone model which allows control over the shape of the deviatoric section, independent of the internal friction angle on the compression meridian. The return strategy and consistent tangent are fully defined for all three regions of principal stress space in which elastic trial states may lie. Errors associated with the integration… CONTINUE READING
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