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The use of the Hoffman yield criterion in finite element analysis of anisotropic composites |
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| Authors: | J. C. J. Schellekens R. de Borst |
| Affiliation: | Delft University of Technology, Department of Civil Engineering/TNO Institute for Building Materials and Structures, P.O. Box 5048, 2600, GA Delft, The Netherlands |
| Abstract: | A return mapping algorithm has been developed for the Hoffman yield function of anisotropic plasticity. The accuracy of the algorithm has been assessed by means of iso-error maps for trial stress increments in the deviatoric and volumetric plane. A tangent operator that is consistent with the developed integration algorithm has been formulated. The Hoffman model has been applied to a plate structure and to two shell structures. |
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