IUTAM Symposium on Discretization Methods for Evolving Discontinuities: Proceedings of the IUTAM Symposium held Lyon, France, 4 - 7 September, 2006 by Alain CombescureIUTAM Symposium on Discretization Methods for Evolving Discontinuities: Proceedings of the IUTAM Symposium held Lyon, France, 4 - 7 September, 2006 by Alain Combescure

IUTAM Symposium on Discretization Methods for Evolving Discontinuities: Proceedings of the IUTAM…

EditorAlain Combescure, René, de Borst, Ted Belytschko

Paperback | January 29, 2011

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Discontinuities are important in the mechanics of solids and fluids. Examples are cracks, shear bands, rock faults, delamination and debonding. With mechanics focusing on smaller and smaller length scales, e.g. on the description of phase boundaries and dislocations, the need to properly model discontinuities increases. While these examples pertain to solid mechanics, albeit at a wide range of scales, technically important interface problems also appear at fluid-solid boundaries, e.g. in welding and casting processes, and in aeroelasticity.Discretization methods have traditionally been developed for continuous media and are less well suited for treating discontinuities. Indeed, they are approximation methods for the solution of the partial differential equations, which are valid on a domain. Discontinuities divide this domain into two or more parts and at the interface special solution methods must be employed. This holds a fortiori for moving or evolving discontinuities like Lüders-Piobert bands, Portevin-le-Chatelier bands, solid-state phase boundaries and dislocations. Also, fluid-solid interfaces cannot be solved accurately except at the expense of complicated and time-consuming remeshing procedures.In recent years, discretization methods have been proposed, which are more flexible and which have the potential of capturing (moving) discontinuities in a robust and efficient manner. Examples are meshfree methods, discontinuous Galerkin methods and finite element methods that exploit the partition-of-unity property of shape functions. This monograph assembles contributions of leading experts with the most recent developments in this rapidly evolving field.
Title:IUTAM Symposium on Discretization Methods for Evolving Discontinuities: Proceedings of the IUTAM…Format:PaperbackDimensions:445 pages, 9.45 × 6.3 × 0 inPublished:January 29, 2011Publisher:Springer NetherlandsLanguage:English

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ISBN - 10:904817659X

ISBN - 13:9789048176595

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Table of Contents

Preface; Meshless Finite Element Methods: Meshless discretisation of nonlocal damage theories, by H. Askes, T. Bennett and S. Kulasegaram; Three-dimensional non-linear fracture mechanics by enriched meshfree methods without asymptotic enrichment, by S. Bordas, C. Zi and T. Rabczuk; Accounting for weak discontinuities and moving boundaries in the context of the Natural Element Method and model reduction techniques, by F. Chinesta, F. Cueto, P. Joyot and P. Villon; Discontinuous Galerkin Methods: Modeling evolving discontinuities with spacetime discontinuous Galerkin methods, by R. Abedi, S.-H. Chung, M.A. Hawker, J. Palaniappan and R.B. Haber; Analysis of a finite element formulation for modelling phase separation G.N. Wells and K. Garikipati; Finite Element Methods with Embedded Discontinuities: Recent developments in the formulation of finite elements with embedded strong discontinuities, by F. Armero and C. Linder;Evolving material discontinuities: Numerical modeling by the Continuum Strong Discontinuity Approach (CSDA), by J. Oliver, A.E. Huespe, S. Blanco and D.L. Linero; A 3D cohesive investigation on branching for brittle materials, by R.C. Yu, A. Pandolfi and M. Ortiz; Partition-of-Unity Based Finite Element Methods: On applications of XFEM to dynamic fracture and dislocations, by T. Belytschko, J.-H. Song, H. Wang and R. Gracie; Some improvements of XFEM for cracked domains, by E. Chahine, P. Laborde, J. Pommier, Y. Renard and M. Salaün; 2D X-FEM simulation of dynamic brittle crack propagation, by A. Combescure, A. Gravouil, H. Maigre, J. Réthoré and D. Gregoire; A numerical framework to model 3-D fracture in bone tissue with application to failure of the proximal femur, by T.C. Gasser and G.A. Holzapfel; Application of X-FEM to 3D real cracks and elastic-plastic fatigue crack growth, by A. Gravouil, A. Combescure, T. Elguedj, E. Ferrié, J.-Y. Buffière and W. Ludwig; Accurate simulation of frictionless and frictional cohesive crack growth in quasi-brittle materials using XFEM B.L. Karihaloo and Q.Z. Xiao; On the application of Hansbo's method for interface problems, by B. Kuhi, Ph. Jãger, J. Mergheim and P. Steinmann; An optimal explicit time stepping scheme for cracks modeled with X-FEM, by T. Menouillard, N. Moës and A. Combescure; Variational Extended Finite Element Model for cohesive cracks: Influence of integration and interface law, by G. Meschke, P. Dumstorff and W. Fleming; An evaluation of the accuracy of discontinuous finite elements in explicit dynamic calculations, by J.J. C. Remmers, R. de Borst, A. Needleman; A discrete model for the propagation of discontinuities in a fluid-saturated medium, by J. Réthoré, R. de Borst and M.-A. Abellan; Single domain quadrature techniques for discontinuous and non-linear enrichments in local Partition of Unity FEM, by G. Ventura;Other Discretization Methods: Numerical determination of crack stress and deformation fields in gradient elastic solids, by G.F. Karlis, S.V. Tsinopoulos, D. Polyzos and Th.E. Beskos; The variational formulation of brittle fracture: Numerical implementation and extensions, by B. Bourdin; Measurement and identification techniques for evolving discontinuities, by F. Hild, J. Réthoré and S. Roux; Conservation under incompatibility for fluid-solid-interaction problems: The NPCL method, by E.H. van Brummelen and R. de Borst; Author Index; Subject Index.