IFB/Forschung/Publikationen

Publikationen

2017
Jakob Werner Steidl and Thomas Peter Fries Construction of a Higher-order Conformal Decomposition FEM for NURBS-based geometries
Gernot Beer, Vincenzo Mallardo, Eugenio Ruocco and Christian Dünser Isogeometric Boundary Element Analysis of steady incompressible viscous flow, Part 1: Plane problems Computer methods in applied mechanics and engineering , 2017 , DOI
Daniel Schöllhammer and Thomas Peter Fries A higher-order FEM for PDEs on implicit manifolds—part II: approximations
Thomas Peter Fries A higher-order FEM for PDEs on implicit manifolds—part I: geometry
Christian Duenser and Gernot Beer BOUNDARY ELEMENT ANALYSIS OF STEADY INCOMPRESSIBLE VISCOUS FLOW WITH ISOGEOMETRIC AND ISOPARAMETRIC DISCRETISATIONCoupled Problems in Science and Engineering VII244-255
Benjamin Marussig, Jürgen Zechner, Gernot Beer and Thomas Peter Fries Stable isogeometric analysis of trimmed geometries Computer methods in applied mechanics and engineering 316, 497-521, 2017 , DOI
Samir Omerovic and Thomas Peter Fries Conformal higher-order remeshing schemes for implicitly defined interface problems International journal for numerical methods in engineering 109, 763-789, 2017 , DOI
T. P. Fries, Samir Omerovic, D. Schöllhammer and Jakob Steidl Higher-order meshing of implicit geometries—Part I Computer methods in applied mechanics and engineering 313, 759-784, 2017 , DOI
Gernot Beer, Vincenzo Mallardo, Eugenio Ruocco, Benjamin Marussig, Jürgen Zechner, Christian Dünser and Thomas-Peter Fries Isogeometric Boundary Element Analysis with elasto-plastic inclusions. Part 2: 3-D problems Computer methods in applied mechanics and engineering 315, 418-433, 2017 , DOI
Thomas Peter Fries Higher-order conformal decomposition FEM (CDFEM): An alternative for XFEM
Markus Schätzer and Thomas Peter Fries A simplified hydraulic fracturing model in 3D with prescribed pressure profiles
2016
Markus Schätzer and T.P. Fries Hydraulic fracturing with a simplified fluid model and XFEMProceedings in Applied Mathematics and Mechanics
Samir Omerovic and T.P. Fries Higher-order conformal decomposition finite element methodProceedings in Applied Mathematics and Mechanics
Markus Schätzer and Thomas-Peter Fries Stress intensity factors through crack-opening displacements in the XFEMAdvances in Discretization Methods: Discontinuities, virtual elements, fictitious domain methods143 - 164
T.P. Fries Higher-order accurate integration for cut elements with Chen-Babuska nodesAdvances in Discretization Methods: Discontinuities, virtual elements, fictitious domain methods245 - 269
Jürgen Zechner, Benjamin Marussig, Gernot Beer and Thomas Peter Fries The isogeometric Nyström method Computer methods in applied mechanics and engineering 308, 212-237, 2016 , DOI
Markus Schätzer and Thomas Peter Fries The XFEM for a simplified model in hydraulic fracturingECCOMAS Congress 2016 - Proceedings of the 7th European Congress on Computational Methods in Applied Sciences and Engineering1637-1646
Thomas Peter Fries and Samir Omerovic Higher-order accurate integration of implicit geometries International journal for numerical methods in engineering 106, 323-371, 2016 , DOI
Bernhard Lindner, Christian Duenser and Gernot Beer Coupling of BEM subdomains – BETI applied to collocation BEM with mixed basis functions Engineering analysis with boundary elements 71, 79-91, 2016 , DOI
Gernot Beer and Christian Duenser Advanced Boundary Element analysis of geotechnical problems with geological inclusions Computers and geotechnics 79, 86-95, 2016 , DOI
Benjamin Marussig, Jürgen Zechner, Gernot Beer and Thomas Peter Fries Integration of design and analysis through boundary integral equationsECCOMAS Congress 2016 - Proceedings of the 7th European Congress on Computational Methods in Applied Sciences and Engineering6526-6538
Gernot Beer, Benjamin Marussig, Jürgen Zechner, Christian Dünser and Thomas Peter Fries Isogeometric Boundary Element analysis with elasto-plastic inclusions. Part 1 Computer methods in applied mechanics and engineering 308, 552-570, 2016 , DOI
Hugo Bastos de Sá Bruno, André Maués Brabo Pereira, Luiz Wrobel and Christian Duenser Uma implementação do MEC Simétrico de Galerkin para problemas de elasticidade 2dCILAMCE 2016
Jakob W. Steidl and Thomas Peter Fries Automatic conformal decomposition of elements cut by NURBSECCOMAS Congress 2016 - Proceedings of the 7th European Congress on Computational Methods in Applied Sciences and Engineering2591-2600
C. Duenser and G. Beer Modelling the process of sequential excavation with the boundary element methodECCOMAS Congress 2016 - Proceedings of the 7th European Congress on Computational Methods in Applied Sciences and Engineering3168-3180
Peter Kautsch Bauphysiktagung 2016
Thomas Peter Fries Accurate integration points for cut higher-order elements with Chen-Babuška nodes
Thomas Peter Fries and Markus Schätzer The XFEM in a Simplified Model for Hydraulic Fracturing in Three Dimensions
Thomas Peter Fries Accurate Integration in Cut Elements based on Conformal Decomposition into Isoparametric Elements
2015
Benjamin Marussig, Jürgen Zechner, Gernot Beer and Thomas-Peter Fries Fast isogeometric boundary element method based on independent field approximation Computer methods in applied mechanics and engineering 284, 458-488, 2015 , DOI
Benjamin Marussig Seamless Integration of Design and Analysis through Boundary Integral Equations
Samir Omerovic and Thomas-Peter Fries XFEM for Deformation Theory of Plasticity Proceedings in applied mathematics and mechanics 15, 223-224, 2015
Daniel Schöllhammer and Heinz Wimmer Bemessung von Stahlbetonstützen mittels Smartphone Beton- und Stahlbetonbau 110, 228, 2015 , DOI
Samir Omerovic and Thomas-Peter Fries XFEM for Deformation Theory of PlasticityBook of Abstracts251-251
Christian Dünser, Bernhard Lindner and Gernot Beer COUPLING OF BOUNDARY ELEMENT REGIONS WITH THE BOUNDARY ELEMENT TEARING AND INTERCONNECTING METHOD (BETI)COUPLED PROBLEMS 2015358-369
Thomas-Peter Fries Higher-order accurate integration of 3D geometries defined by level-setsBook of abstracts1-1
Thomas-Peter Fries A higher-order accurate numerical integration for the XFEM and fictitious domain methodsBook of abstract95-96
Markus Schätzer and Thomas-Peter Fries Crack propagation by using crack opening displacements in 2D and 3D XFEMBook of abstracts62-63
Christian Dünser, Bernhard Lindner and Gernot Beer Boundary Element Methods for the Simulation of Underground ConstructionThe Changing Face of the Earth – Geomechanics & Human Influence128-135
Benjamin Marussig, Jürgen Zechner, Gernot Beer and Thomas-Peter Fries Isogeometric Boundary Element Analysis with Trimmed GeometriesIII International Conference on Isogeometric Analysis - IGA 2015122-122
Samir Omerovic and Thomas-Peter Fries XFEM vs. r-Refinement for Higher-Order Approximations in ElastoplasticityConference Program and Book of Abstracts40-41
Jürgen Zechner The Isogeometric Nyström MethodIII International Conference on Isogeometric Analysis - IGA 201588-88
Thomas-Peter Fries Towards higher-order XFEM for interfacial flows Proceedings in applied mathematics and mechanics 15, 507-508, 2015 , DOI
Gernot Beer and Benjamin Marussig Boundary Element MethodsIsogeometric Methods for Numerical Simulation121-172
Markus Schätzer and Thomas-Peter Fries Fitting stress intensity factors from crack opening displacements in 2D and 3D XFEM Proceedings in applied mathematics and mechanics 15, 149-150, 2015 , DOI
Gernot Beer, Benjamin Marussig and Jürgen Zechner A simple approach to the numerical simulation with trimmed CAD surfaces Computer methods in applied mechanics and engineering 285, 776-790, 2015 , DOI
2014
Thomas-Peter Fries, Michael Fücker and Armin Kauerauf The Finite Element Method with Continuity Constraints for Stair-step Grids in Geoscience Computational geosciences 18, 831-850, 2014 , DOI
Benjamin Marussig, Gernot Beer and Christian Dünser Isogeometric Boundary Element Method for the Simulation in Tunneling Applied mechanics and materials 553, 495-500, 2014 , DOI
Safdar Abbas and Thomas Peter Fries A unified enrichment scheme for fracture problems IOP Conference Series / Materials Science and Engineering 10, 2014 , DOI
Thomas-Peter Fries, Markus Schätzer and Nikolai Weber XFEM-simulation of hydraulic fracturing in 3D with emphasis on stress intensity factors
Sergej Muhic Utilizing IFC for Indoor PositioningeWork and eBusiness in Architecture, Engineering and Construction: ECPPM 2014
Martin Krammer, Thomas Bernoulli and Ulrich Walder Beyond HTML5 Geolocation - A Flexible Concept to Enable and Easily Use Advanced Positioning Technologies for Mobile Indoor Location Based Service Web ApplicationsThe Fifth International Conference on Indoor Positioning and Indoor Navigation 2014 (IPIN 2014)
Gernot Beer, Benjamin Marussig, Jürgen Zechner, Christian Dünser and Thomas-Peter Fries Boundary Element Analysis with Trimmed NURBS and a Generalized IGA ApproachProceedings of the jointly organized WCCM XI, ECCM V, ECFD VI2445-2456
Martin Krammer, Thomas Bernoulli and Ulrich Walder All You Need Is Content — Create Sophisticated Mobile Location-Based Service Applications Without ProgrammingProceedings of the 11th International Symposium on Location- Based Services293-308
Benjamin Marussig, Jürgen Zechner, Gernot Beer, Christian Dünser and Thomas-Peter Fries An Alternative Isogeometric Boundary Element FormulationIsogeometric Analysis and Applications (IGAA 2014)30-30
Thomas-Peter Fries, Markus Schätzer and Nikolai Weber XFEM-simulation of hydraulic fracturing in 3D with emphasis on stress intensity factorsProceedings of the 11th World Congress on Computational Mechanics (WCCM XI)1-12
Jürgen Zechner, Benjamin Marussig, Gernot Beer, Christian Dünser and Thomas-Peter Fries Isogeometric Boundary Element Method with Hierarchical MatricesProceedings of the jointly organized WCCM XI, ECCM V, ECFD VI2457-2468
Thomas-Peter Fries Overview and comparison of different variants of the XFEM Proceedings in applied mathematics and mechanics 14, 27-30, 2014 , DOI
2013
Nikolai Weber, Philip Siebert, Karen Willbrand, Martin Feinendegen, Christoph Clauser and Thomas-Peter Fries The XFEM with an explicit-implicit crack description for hydraulic fracture problemsEffective and Sustainable Hydraulic Fracturing711-724
Gernot Beer, Benjamin Marussig and Christian Dünser Isogeometric boundary element method for the simulation of underground excavations Géotechnique Letters 3, 108-111, 2013 , DOI
Nikolai Weber and Thomas-Peter Fries The XFEM with an Implicit-Explicit Crack Description for a Plane-Strain Hydraulic Fracture ProblemProceedings in Applied Mathematics and Mechanics83-84
Benjamin Marussig, Christian Dünser and Gernot Beer Isogeometric Boundary Element Methods for TunnelingIABEM 2013 Symposium of the International Association for Boundary Element Methods100-106
Benjamin Marussig, Gernot Beer and Christian Dünser Isogeometric boundary element method for the simulation in tunnelingACCM 2013: 1st australasian conference on computational mechanics17-17
Henning Sauerland and Thomas-Peter Fries The stable XFEM for two-phase flows Computers & fluids 87, 41-49, 2013 , DOI
Klaus Aichhorn, Driton Kuci, Carmen Sommer, Claudia Fösleitner, Ioana Koglbauer, Petra Hafner, Thomas Moder, Manfred Wieser, Salvatore Sylvester Valeskini, Thomas Bernoulli, Ulrich Walder, Klaus Witrisal and Heimo Krajnz LOBSTER Final Report
2012
Gernot Beer, Christian Dünser and Katharina Riederer Boundary Element MethodsInnovative Numerical Modeling in Geomechanics281-298
Christian Dünser Numerical Simulation of Underground Construction with the Boundary Element Method
Thomas Peter Fries and Malak Baydoun Crack propagation with the extended finite element method and a hybrid explicit-implicit crack description International journal for numerical methods in engineering 89, 1527-1558, 2012 , DOI
M. Baydoun and T. P. Fries Crack propagation criteria in three dimensions using the XFEM and an explicit-implicit crack description International journal of fracture 178, 51-70, 2012 , DOI
H. Sauerland and T. P. Fries The extended finite element method applied to 3D free-surface flowsECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering, e-Book Full Papers2285-2293
K. W. Cheng and T. P. Fries XFEM with hanging nodes for two-phase incompressible flow Computer methods in applied mechanics and engineering 245-246, 290-312, 2012 , DOI
Christian Dünser Determination of excavation loads for the sequential tunnel excavation with the boundary element methodBook of Abstracts309-309
Benjamin Marussig Isogeometric Boundary Element MethodKurzfassungen der Vorträge BB12141-141
Gernot Beer, Jerzy Rojek, Gerasimus Karlis and Lukasz Jakub Malinowski Adaptive coupling of different numerical methodsLa Serena Numerica
Bernhard Lindner, Christian Dünser and Gernot Beer Simulation of Sequential Tunnel Excavation with the Boundary Element Tearing and Interconnecting MethodBook of Abstracts1-1
Bernhard Lindner, Christian Dünser and Gernot Beer Simulation of nonlinear problems in tunneling with the boundary element tearing and interconnecting methodBook of Abstracts306-306
Jürgen Zechner and Gernot Beer A fast elasto-plastic formulation with hierarchical matrices and the boundary element method Computational mechanics , 1-11, 2012 , DOI
Jürgen Zechner A Fast Boundary Element Method with Hierarchical Matrices for Elastostatics and Plasticity
Benjamin Marussig Sequentieller Tunnelaushub mit der Finite Elemente Methode
Christian Dünser and Gernot Beer Simulation of sequential excavation with the Boundary Element Method Computers and geotechnics , 157-166, 2012 , DOI
Christian Dünser, Klaus Thöni, Katharina Riederer, Bernhard Lindner and Gernot Beer New Developments of the Boundary Element Method for Underground Constructions International journal of geomechanics 12, 665-675, 2012 , DOI
2011
Gernot Beer, Christian Dünser, Günter Hofstetter and Yvonne Theiner Baustatik Baupraxis 11
Thomas Peter Fries, Andreas Byfut, Alaskar Alizada, Kwok Wah Cheng and Andreas Schröder Hanging nodes and XFEM International journal for numerical methods in engineering 86, 404-430, 2011 , DOI
Henning Sauerland and Thomas Peter Fries The extended finite element method for two-phase and free-surface flows Journal of computational physics 230, 3369-3390, 2011 , DOI
Lukasz Jakub Malinowski, Gerasimos Karlis, Gernot Beer and Jerzy Rojek Adaptive coupling of the discrete and boundary element method for the simulation of problems in geotechnical engineering
Lukasz Jakub Malinowski, Gerasimos Karlis, Gernot Beer and Jerzy Rojek Iterative Coupling of Boundary and Discrete Element Method Using an Overlapping FEM Zone
Gernot Beer, Christian Dünser, Günter Hofstetter and Yvonne Theiner Baustatik Baupraxis 11
Jürgen Zechner and Martin Ebner Playing a Game in Civil Engineering14th International Conference on Interactive Collaborative Learning (ICL2011) ̶ 11th International Conference Virtual University (vu'11)417-422
Gernot Beer, Christian Dünser, Jürgen Zechner and Bernhard Lindner Innovative Simulationsmethoden im TunnelbauBaustatik Baupraxis 119-16
Lukasz Jakub Malinowski Iterative Coupling of Boundary and Discrete Element Method Using an Overlapping FEM ZoneComputational Methods for Coupled Problems in Science and Engineering IV - “COUPLED PROBLEMS 2011”301-312
2010
Thomas Peter Fries and Ted Belytschko The extended/generalized finite element method International journal for numerical methods in engineering 84, 253-304, 2010 , DOI
Safdar Abbas, Alaskar Alizada and Thomas Peter Fries The XFEM for high-gradient solutions in convection-dominated problems International journal for numerical methods in engineering 82, 1044-1072, 2010 , DOI
T. Knott, S. Ullrich, O. Grottke, T. Fries, M. Gerressen, T. M. Deserno, R. Rossaint and T. Kuhlen Medical training simulators for bilateral sagittal split osteotomy and regional aneasthesia in virtual environmentsProceedings CURAC 2010137-140
Kwok Wah Cheng and Thomas Peter Fries Higher-order XFEM for curved strong and weak discontinuities International journal for numerical methods in engineering 82, 564-590, 2010 , DOI
Jürgen Zechner and Gernot Beer Accelerated BEM Simulations with Hierarchical Matrices applied to Tunnelling Problems
Jürgen Zechner and Gernot Beer Application of Hierarchical Matrices to a BEM Plasticity Algorithm in Tunnelling
Jürgen Zechner and Gernot Beer Fast BEM Simulations In Tunnelling
Gernot Beer Technology Innovation in underground construction
Klaus Thöni, Katharina Riederer and Gernot Beer New Developments of the Boundary Element Method with Internal CellsPan-American Congress of Applied Mechanics
Samir Omerovic Implementation and Use of the UPC Soil Models with the Boundary Element Method
Gernot Beer, Christian Dünser, Katharina Riederer, Plinio Glauber Carvalho dos Prazeres, Klaus Thöni, Jürgen Zechner and Martin Stettner Computer Simulation of Conventional ConstructionTechnology Innovation in Underground Construction129-161