1.

Record Nr.

UNINA9910279755603321

Titolo

Geometrically Unfitted Finite Element Methods and Applications : Proceedings of the UCL Workshop 2016 / / edited by Stéphane P. A. Bordas, Erik Burman, Mats G. Larson, Maxim A. Olshanskii

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2017

ISBN

3-319-71431-7

Edizione

[1st ed. 2017.]

Descrizione fisica

1 online resource (371 pages)

Collana

Lecture Notes in Computational Science and Engineering, , 1439-7358 ; ; 121

Disciplina

620.001515353

Soggetti

Computer mathematics

Computer science—Mathematics

Applied mathematics

Engineering mathematics

Computational Mathematics and Numerical Analysis

Mathematics of Computing

Mathematical and Computational Engineering

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Introduction -- 1 Deriving robust unfitted finite element methods from augmented Lagrangian formulations (E. Burman, P. Hansbo) -- 2 Cut finite element methods for linear elasticity problems (P. Hansbo, M.G. Larson, K. Larsson) -- 3 A higher order isoparametric fictitious domain method for level set domains (C. Lehrenfeld) -- 4 An overview of recent results on Nitsches method for contact problems (F. Chouly, M. Fabre, P. Hild, R. Mlika, J. Pousin, Y. Renard) -- 5 Inf-sup stable unfitted extended finite element methods with Lagrange multipliers for the Stokes equations (M. Fournié, A. Lozinski) -- 6 Penalty-free Nitsches method for interface problems (T. Boiveau, E. Burman, S. Claus) -- 7 Trace Finite Element Methods for PDEs on Surfaces (M. A. Olshanskii, A. Reusken) -- 8 A Cut Discontinuous Galerkin Method for Coupled Bulk-Surface Problems (A. Massing) -- 9 A space-time cut finite element method for convection-diffusion problems in time dependent domains



(S. Zahedi) -- 10 Well Conditioned Extended Finite Elements and Vector Level Sets for Three-Dimensional Crack Propagation (S. Bordas, A. Kostas) -- 11 Unfitted FEM for modelling the interaction of multiple fractures in a poroelastic medium (B. Giovanardi, L. Formaggia, A. Scotti, P. Zunino).

Sommario/riassunto

This book provides a snapshot of the state of the art of the rapidly evolving field of integration of geometric data in finite element computations. The contributions to this volume, based on research presented at the UCL workshop on the topic in January 2016, include three review papers on core topics such as fictitious domain methods for elasticity, trace finite element methods for partial differential equations defined on surfaces, and Nitsche’s method for contact problems. Five chapters present original research articles on related theoretical topics, including Lagrange multiplier methods, interface problems, bulk-surface coupling, and approximation of partial differential equations on moving domains. Finally, two chapters discuss advanced applications such as crack propagation or flow in fractured poroelastic media. This is the first volume that provides a comprehensive overview of the field of unfitted finite element methods, including recent techniques such as cutFEM, traceFEM, ghost penalty, and augmented Lagrangian techniques. It is aimed at researchers in applied mathematics, scientific computing or computational engineering.