
T.P. Fries, H.G. Matthies:
SUPG stabilization for convectiondominated problems with Meshfree Methods,
Annual meeting of the GAMM (International association of applied mathematics and mechanics) in Padua, Italy, Mar. 2003.


T.P. Fries, H.G. Matthies:
PetrovGalerkin meshfree methods for the incompressible NavierStokes equations,
Workshop "Meshfree Methods for Partial Differential Equations" in Bonn, Germany, Sep. 2003.


T.P. Fries, H.G. Matthies:
Coupling meshfree methods and FEM for the incompressible NavierStokes equations,
Annual meeting of the GAMM (International association of applied mathematics and mechanics) in Dresden, Germany, Mar. 2004.


T.P. Fries, H.G. Matthies:
Coupled meshfree/meshbased methods for fluid dynamics – An alternative for the Chimera grid technique,
Advanced problems in mechanics (APM) in St. Petersburg, Russia, Jun. 2004.


T.P. Fries, H.G. Matthies:
Stabilized and coupled FEM/EFG approximations for fluid problems,
World congress on computational mechanics (WCCM) VI in Beijing, China, Sep. 2004.


T.P. Fries, H.G. Matthies:
Simulation of incompressible flows with coupled FEM/EFG shape functions,
Annual meeting of the GAMM (International association of applied mathematics and mechanics) in Luxemburg, Mar. 2005.


T.P. Fries, H.G. Matthies:
A coupled meshfree/meshbased method for geometrically complex FSI problems,
ECCOMAS thematic conference "Coupled Problems" in Santorini, Greece, May 2005.


T.P. Fries, H.G. Matthies:
A coupled meshfree/meshbased method for geometrically complex FSI problems,
Third M.I.T. conference on computational fluid and solid mechanics in Cambridge, USA, Jun. 2005.


T.P. Fries, T. Belytschko:
The intrinsic XFEM: A method for arbitrary discontinuities without additional unknowns,
World congress on computational mechanics (WCCM) VII in Los Angeles, USA, Jul. 2006.


T.P. Fries:
The intrinsic XFEM for twofluid flows,
International conference on computational mechanics (ICCM) in Hiroshima, Japan, Apr. 2007.


T.P. Fries:
A modified XFEM with no problems in blending elements,
9th US National Congress on Computational Mechanics (USNCCM9) in San Francisco, USA, Jul. 2007.


T. Belytschko, T.P. Fries, T. Rabczuk:
Stresspoint integration and large deformation studies in meshfree methods,
4th Workshop "Meshfree Methods for Partial Differential Equations" in Bonn, Germany, Sep. 2007.


T.P. Fries:
The intrinsic XFEM for incompressible moving boundary problems,
2nd GACM Colloquium on Computational Mechanics in München, Germany, Oct. 2007.


T.P. Fries:
Coupling meshfree methods and FEM for fluidstructure interaction,
2nd GACM Colloquium on Computational Mechanics in München, Germany, Oct. 2007.


M. Gerressen, D. Riediger, T.P. Fries, T. Kuhlen:
Entwicklung eines interaktiven VRbasierten chirurgischen Simulators zum Training der BSSO,
58. Jahrestagung der Arbeitsgemeinschaft Kieferchirurgie,
Wiesbaden, Germany, May 2008.


A. Alizada, T.P. Fries:
The extended finite element method for boundary layers,
World congress on computational mechanics (WCCM 8) and European congress on computational
methods in applied sciences and engineering (ECCOMAS 2008),
Venice, Italy, Jul. 2008.


T.P. Fries, A. Zilian:
Time integration in the XFEM,
World congress on computational mechanics (WCCM 8) and European congress on computational
methods in applied sciences and engineering (ECCOMAS 2008),
Venice, Italy, Jul. 2008.


T.P. Fries:
The extended finite element method: An introduction and overview,
Workshop on Multiscale Methods in Rolduc, Netherlands, Mar. 2009.


T.P. Fries:
Simulation of swimming objects by means of the extended finite element method,
ECCOMAS Thematic Conference on Coupled Problems, Ischia, Italy, Jun. 2009.


S. Abbas, T.P. Fries:
XFEM as an alternative for the classical hrefinement,
10th US National Congress on Computational Mechanics (USNCCM X) in Columbus (OH), USA, Jul. 2009.


K.W. Cheng, T.P. Fries:
Higherorder extended finite element method for arbitrary weak discontinuities,
10th US National Congress on Computational Mechanics (USNCCM X) in Columbus (OH), USA, Jul. 2009.


T.P. Fries:
Time integration in the XFEM for twophase and freesurface flows,
10th US National Congress on Computational Mechanics (USNCCM X) in Columbus (OH), USA, Jul. 2009.


S. Abbas, A. Alizada, T.P. Fries:
The extended finite element method for convectiondominated problems,
3rd GACM Colloquium on Computational Mechanics in Hannover, Germany, Sep. 2009.


A. Alizada, T.P. Fries:
Twophase flow simulation with XFEM and hanging nodes,
3rd GACM Colloquium on Computational Mechanics in Hannover, Germany, Sep. 2009.


K.W. Cheng, T.P. Fries:
A comparison of various enrichment functions for weak discontinuities with respect to higherorder XFEM approximations,
3rd GACM Colloquium on Computational Mechanics in Hannover, Germany, Sep. 2009.


H. Sauerland, T.P. Fries:
Freesurface flows with the XFEM: A comparison with interface tracking in the classical FEM,
3rd GACM Colloquium on Computational Mechanics in Hannover, Germany, Sep. 2009.


T.P. Fries:
The extended finite element method for the simulation of swimming objects,
3rd GACM Colloquium on Computational Mechanics in Hannover, Germany, Sep. 2009.


S. Abbas, A. Alizada, T.P. Fries:
The extended finite element method for highgradient solutions,
ECCOMAS thematic conference on extended finite element methods (XFEM 2009) in Aachen, Germany, Sep. 2009.


A. Alizada, T.P. Fries:
Simulation of cracks with XFEM and hanging nodes,
ECCOMAS thematic conference on extended finite element methods (XFEM 2009) in Aachen, Germany, Sep. 2009.


K.W. Cheng, T.P. Fries:
A systematic study of different XFEMformulations with respect to higherorder accuracy for arbitrarily curved discontinuities,
ECCOMAS thematic conference on extended finite element methods (XFEM 2009) in Aachen, Germany, Sep. 2009.


H. Sauerland, T.P. Fries:
Freesurface flows with the XFEM: A comparison with interface tracking in the classical FEM,
ECCOMAS thematic conference on extended finite element methods (XFEM 2009) in Aachen, Germany, Sep. 2009.


T.P. Fries, S. Abbas, A. Alizada, M. Baydoun, K.W. Cheng, H. Sauerland:
Extended finite element methods for evolving interfaces,
ECCOMAS thematic conference on extended finite element methods (XFEM 2009) in Aachen, Germany, Sep. 2009.


S. Abbas, T.P. Fries:
High gradient enrichment functions for crack propagation in cohesive and cohesionless cracks,
4th European Conference on Computational Mechanics (ECCM 2010) in Paris, France, May 2010.


A. Alizada, T.P. Fries:
Cracks and crack propagation with XFEM and hanging nodes in 2D,
4th European Conference on Computational Mechanics (ECCM 2010) in Paris, France, May 2010.


M. Baydoun, T.P. Fries:
The XFEM using cracktip enrichment with large support for curved cracks,
4th European Conference on Computational Mechanics (ECCM 2010) in Paris, France, May 2010.


K.W. Cheng, T.P. Fries:
hadaptive XFEM for twophase incompressible flow,
4th European Conference on Computational Mechanics (ECCM 2010) in Paris, France, May 2010.


H. Sauerland, T.P. Fries:
3D twophase flow simulations with the extended finite element method (XFEM),
5th European Conference on Computational Fluid Dynamics (ECCOMAS CFD 2010) in Lisbon, Portugal, Jun. 2010.


S. Abbas, T.P. Fries:
A unified enrichment scheme for fracture problems,
9th World congress on computational mechanics (WCCM 2010) in Sydney, Australia, Jul. 2010.


A. Alizada, T.P. Fries:
Cohesive cracks with XFEM and hanging nodes,
9th World congress on computational mechanics (WCCM 2010) in Sydney, Australia, Jul. 2010.


M. Baydoun, T.P. Fries:
Hybrid explicitimplicit description of cracks in XFEM,
9th World congress on computational mechanics (WCCM 2010) in Sydney, Australia, Jul. 2010.


H. Sauerland, T.P. Fries:
Parallelization of an extended finite element twophase flow solver,
9th World congress on computational mechanics (WCCM 2010) in Sydney, Australia, Jul. 2010.


H. Sauerland, T.P. Fries:
Modeling transport phenomena on fluid interfaces in combination with the XFEM,
16. Internat. Conference on Finite Elements in Flow Problems in Munich, Germany, Mar. 2011.


T.P. Fries:
3d fracture simulations with XFEM and a hybrid explicitimplicit crack description,
Annual meeting of the GAMM (International association of applied mathematics and mechanics) in Graz, Austria, Apr. 2011.


M. Baydoun, T.P. Fries:
Material forces for 3D crack propagation in XFEM,
International conference on Computational Modeling of Fracture and Failure of Materials and Structures (CFRAC 2011) in Barcelona, Spain, Jun. 2011.


T.P. Fries:
3d crack propagation with XFEM and mesh refinement,
International conference on Computational Modeling of Fracture and Failure of Materials and Structures (CFRAC 2011) in Barcelona, Spain, Jun. 2011.


H. Sauerland, T.P. Fries:
Twophase flows using the XFEM: Modeling of transport phenomena on fluid interfaces,
ECCOMAS thematic conference on extended finite element methods (XFEM 2011) in Cardiff, UK, Jun. 2011.


H. Sauerland, T.P. Fries:
3D freesurface flow simulations with accurate treatment of discontinuities using the XFEM,
11th US National Congress on Computational Mechanics (USNCCM XI) in Minneapolis (MN), USA, Jul. 2011.


H. Sauerland, T.P. Fries:
The extended finite element method applied to 3D freesurface flows,
6th European Congress On Computational Methods In Applied Sciences And Engineering (ECCOMAS 2012) in Vienna, Sep. 2012.
