Download Bifurcations and Instabilities in Geomechanics: Proceedings by J.F. Labuz, A. Drescher PDF

By J.F. Labuz, A. Drescher

This booklet encompasses a sampling of papers awarded on the June 2-5, 2002 overseas Workshop on Bifurcations andamp; Instabilities in Geomechanics (IWBI 2002). The scope of the Workshop contains analytical techniques, numerical tools, and experimental options.

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Additional resources for Bifurcations and Instabilities in Geomechanics: Proceedings of the International Workshop, IWBI 2002, Minneapolis, Minnesota, 2-5 June 2002

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21:119-137. Fossum, A. F. & Fredrich, J. T. 2000. Cap plasticity models and compactive and dilatant pre-failure deformations. In J. Girard, M. Liebman, C. Breeds, & T. ), Pacific Rocks 2000: 1169-1176. Rotterdam: Balkema. Gu, C, Kim, M. & Anand, L. 2001. Constitutive equations for metal powders: application to powder forming processes. Int. J. Plasticity 17: 147-209. Haimson, B. C. 2001. Fracture-like borehole breakouts in high-porosity sandstone: are they caused by compaction bands? Phys. Chem.

In W. ), Theoretical and Applied Mechanics, Proc. 14th IUTAM Congress: 207-220. Amsterdam: North Holland. Rice, J. R. & Rudnicki, J. W. 1980. A note on some features of the theory of localization of deformation. Int. J. Solids Struct. 16: 597-605. Rudnicki, J. W. 1977. The effect of stress-induced anisotropy on a model of brittle rock failure as localization of deformation. -D. Wang & G. B. ), Energy Resources and Excavation Technology, Proceedings of the 18th U. S. Symposium on Rock Mechanics: 3B4- - 3B4-8.

Most of them accept a constitutive description provided by the user, which is a good prospect for the development of hypoplasticity. , Lisse, The Netherlands Summing up: the FE-results can clearly support the conventional design methods but the quality of the constitutive theory is of cruicial importance in this context. Thus, procedures on well-posedness conditions, which make the numerical analysis reasonable in mechanical viewpoint, should or even must be still improved due to the new versions of hypoplasticity, in particular.

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