R. Chambon (auth.), Stéphane Bonelli, Cristian Dascalu,'s Advances in Bifurcation and Degradation in Geomaterials: PDF

By R. Chambon (auth.), Stéphane Bonelli, Cristian Dascalu, François Nicot (eds.)

ISBN-10: 9400714203

ISBN-13: 9789400714205

This e-book provides contributions to the ninth foreign Workshop on Bifurcation and Degradation in Geomaterials held in Porquerolles, France, might 23-26, 2011. This sequence of meetings, begun within the early Nineteen Eighties, is devoted to the examine on degradation and instability phenomena in geomaterials.

The quantity gathers a chain of manuscripts through great overseas students reflecting fresh tendencies in theoretical and experimental examine in geomechanics. It contains contributions on themes like instability research, localized and diffuse failure description, multi-scale modeling and purposes to geo-environmental issues.

This ebook should be priceless for an individual drawn to the study on degradation and instabilities in geomechanics and geotechnical engineering, attractive to graduate scholars, researchers and engineers alike.

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Tordesillas, P. M. Walker, Paramitha, Evolution of functional connectivity in contact and force chain networks: feature vectors, k-cores and minimal cycles. R. Mecanique 338, 556–569 (2010a). 004 A. Tordesillas, S. P. M. Walker, M. Hopkins, Network analysis of evolving three-dimensional granular structures. Dyn. , Discr. Impuls. -B (accepted) (2010b) A. M. Walker, Q. Lin, Force chains and force cycles. Phys. Rev. M. Walker, A. Tordesillas, Topological evolution in dense granular materials: a complex networks perspective.

Rev. E 75, 051304 (2007) F. Dubois, M. Jean, The non smooth contact dynamic method: recent LMGC90 software developments and application, in Analysis and Simulation of Contact Problems, vol. C. Hidalgo, I. Zuriguel, D. Maza, I. Pagonabarraga, Role of particle shape on the stress propagation in granular packings. Phys. Rev. Lett. K. Mitchell, K. J. Moreau, Some numerical methods in multibody dynamics: application to granular. Eur. J. Mech. A/Solids 13, 93–114 (1994) Microscopic Origins of Shear Strength in Packings Composed of Elongated Particles 27 H.

Figure 2 displays the solid fraction as a function of Á at different levels of shear deformation "q . It is remarkable that, at all levels of deformation, the solid fraction increases with Á, reaches a maximum at Á ' 0:4 and then declines as Á further increases. We note that solid fractions as large as 0:90 are reached for Á D 0:4 in the initial state. 0 η Fig. 2 (a) Internal angle of friction ' as a function elongation Á. (b) Solid fraction as a function of particle shape parameter Á at different levels of shear strain 24 E.

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Advances in Bifurcation and Degradation in Geomaterials: Proceedings of the 9th International Workshop on Bifurcation and Degradation in Geomaterials by R. Chambon (auth.), Stéphane Bonelli, Cristian Dascalu, François Nicot (eds.)


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