IFB/Forschung/Publikationen

Publikationen

2018
Jakob Werner Steidl and Thomas Peter Fries A higher-order conformal decomposition finite element method for plane B-rep geometries Computers & structures 2018, 2018
Jakob Werner Steidl and Thomas Peter Fries 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 2 : 3-D problems Computer Methods in Applied Mechanics and Engineering 2018, 440-461, 2018 , DOI
Gernot Beer and Christian Duenser Advanced 3-D Boundary Element analysis of underground excavations Computers and Geotechnics 2018, 196-207, 2018 , DOI
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, 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 DISCRETISATIONBOUNDARY ELEMENT ANALYSIS OF STEADY INCOMPRESSIBLE VISCOUS FLOW WITH ISOGEOMETRIC AND ISOPARAMETRIC DISCRETISATION244-255
Benjamin Marussig, Jürgen Zechner, Gernot Beer and Thomas Peter Fries Stable isogeometric analysis of trimmed geometries Computer methods in applied mechanics and engineering 2017, 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 2017, 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 2017, 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 2017, 418-433, 2017 , DOI
Samir Omerovic Higher-order finite element methods for implicitly defined interface problems
Thomas Bernoulli Flexibilität durch Modularität: Ein Framework für sensorbasierte Positionierungssysteme
Ben Urick and Benjamin Marussig Why CAD Surface Geometry is Inexact
T. P. Fries and D. Schöllhammer Higher-order meshing of implicit geometries, Part II: Approximations on manifolds Computer Methods in Applied Mechanics and Engineering 2017, 270-297, 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 XFEMHydraulic fracturing with a simplified fluid model and XFEM
Samir Omerovic and T.P. Fries Higher-order conformal decomposition finite element methodHigher-order conformal decomposition finite element method
Markus Schätzer and Thomas-Peter Fries Stress intensity factors through crack-opening displacements in the XFEMStress intensity factors through crack-opening displacements in the XFEM143 - 164
T.P. Fries Higher-order accurate integration for cut elements with Chen-Babuska nodesHigher-order accurate integration for cut elements with Chen-Babuska nodes245 - 269
Jürgen Zechner, Benjamin Marussig, Gernot Beer and Thomas Peter Fries The isogeometric Nyström method Computer methods in applied mechanics and engineering 2016, 212-237, 2016 , DOI
Markus Schätzer and Thomas Peter Fries The XFEM for a simplified model in hydraulic fracturingThe XFEM for a simplified model in hydraulic fracturing1637-1646
Thomas Peter Fries and Samir Omerovic Higher-order accurate integration of implicit geometries International journal for numerical methods in engineering 2016, 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 2016, 79-91, 2016 , DOI
Gernot Beer and Christian Duenser Advanced Boundary Element analysis of geotechnical problems with geological inclusions Computers and geotechnics 2016, 86-95, 2016 , DOI
Benjamin Marussig, Jürgen Zechner, Gernot Beer and Thomas Peter Fries Integration of design and analysis through boundary integral equationsIntegration of design and analysis through boundary integral equations6526-6538
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 2016, 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 2dUma implementação do MEC Simétrico de Galerkin para problemas de elasticidade 2d
Jakob W. Steidl and Thomas Peter Fries Automatic conformal decomposition of elements cut by NURBSAutomatic conformal decomposition of elements cut by NURBS2591-2600
C. Duenser and G. Beer Modelling the process of sequential excavation with the boundary element methodModelling the process of sequential excavation with the boundary element method3168-3180
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 2015, 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 2015, 223-224, 2015
Daniel Schöllhammer and Heinz Wimmer Bemessung von Stahlbetonstützen mittels Smartphone Beton- und Stahlbetonbau 2015, 228, 2015 , DOI
Samir Omerovic and Thomas-Peter Fries XFEM for Deformation Theory of PlasticityXFEM for Deformation Theory of Plasticity251-251
Christian Dünser, Bernhard Lindner and Gernot Beer COUPLING OF BOUNDARY ELEMENT REGIONS WITH THE BOUNDARY ELEMENT TEARING AND INTERCONNECTING METHOD (BETI)COUPLING OF BOUNDARY ELEMENT REGIONS WITH THE BOUNDARY ELEMENT TEARING AND INTERCONNECTING METHOD (BETI)358-369
Sergej Muhic Employing existing standard BIM formats as the source of building information in Indoor Positioning
Thomas-Peter Fries Higher-order accurate integration of 3D geometries defined by level-setsHigher-order accurate integration of 3D geometries defined by level-sets1-1
Thomas-Peter Fries A higher-order accurate numerical integration for the XFEM and fictitious domain methodsA higher-order accurate numerical integration for the XFEM and fictitious domain methods95-96
Markus Schätzer and Thomas-Peter Fries Crack propagation by using crack opening displacements in 2D and 3D XFEMCrack propagation by using crack opening displacements in 2D and 3D XFEM62-63
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 GeometriesIsogeometric Boundary Element Analysis with Trimmed Geometries122-122
Samir Omerovic and Thomas-Peter Fries XFEM vs. r-Refinement for Higher-Order Approximations in ElastoplasticityXFEM vs. r-Refinement for Higher-Order Approximations in Elastoplasticity40-41
Jürgen Zechner The Isogeometric Nyström MethodThe Isogeometric Nyström Method88-88
Thomas-Peter Fries Towards higher-order XFEM for interfacial flows Proceedings in applied mathematics and mechanics 2015, 507-508, 2015 , DOI
Gernot Beer and Benjamin Marussig Boundary Element MethodsBoundary Element Methods121-172
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 2015, 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 2015, 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 2014, 831-850, 2014 , DOI
Benjamin Marussig, Gernot Beer and Christian Dünser Isogeometric Boundary Element Method for the Simulation in Tunneling Applied mechanics and materials 2014, 495-500, 2014 , DOI
Safdar Abbas and Thomas Peter Fries A unified enrichment scheme for fracture problems IOP Conference Series / Materials Science and Engineering 2014, 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 PositioningUtilizing IFC for Indoor Positioning
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 ApplicationsBeyond HTML5 Geolocation - A Flexible Concept to Enable and Easily Use Advanced Positioning Technologies for Mobile Indoor Location Based Service Web Applications
Gernot Beer, Benjamin Marussig, Jürgen Zechner, Christian Dünser and Thomas-Peter Fries Boundary Element Analysis with Trimmed NURBS and a Generalized IGA ApproachBoundary Element Analysis with Trimmed NURBS and a Generalized IGA Approach2445-2456
Martin Krammer, Thomas Bernoulli and Ulrich Walder All You Need Is Content — Create Sophisticated Mobile Location-Based Service Applications Without ProgrammingAll You Need Is Content — Create Sophisticated Mobile Location-Based Service Applications Without Programming293-308
Benjamin Marussig, Jürgen Zechner, Gernot Beer, Christian Dünser and Thomas-Peter Fries An Alternative Isogeometric Boundary Element FormulationAn Alternative Isogeometric Boundary Element Formulation30-30
Thomas-Peter Fries, Markus Schätzer and Nikolai Weber XFEM-simulation of hydraulic fracturing in 3D with emphasis on stress intensity factorsXFEM-simulation of hydraulic fracturing in 3D with emphasis on stress intensity factors1-12
Jürgen Zechner, Benjamin Marussig, Gernot Beer, Christian Dünser and Thomas-Peter Fries Isogeometric Boundary Element Method with Hierarchical MatricesIsogeometric Boundary Element Method with Hierarchical Matrices2457-2468
Thomas-Peter Fries Overview and comparison of different variants of the XFEM Proceedings in applied mathematics and mechanics 2014, 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 problemsThe XFEM with an explicit-implicit crack description for hydraulic fracture problems711-724
Gernot Beer, Benjamin Marussig and Christian Dünser Isogeometric boundary element method for the simulation of underground excavations Géotechnique Letters 2013, 108-111, 2013 , DOI
Nikolai Weber and Thomas-Peter Fries The XFEM with an Implicit-Explicit Crack Description for a Plane-Strain Hydraulic Fracture ProblemThe XFEM with an Implicit-Explicit Crack Description for a Plane-Strain Hydraulic Fracture Problem83-84
Benjamin Marussig, Christian Dünser and Gernot Beer Isogeometric Boundary Element Methods for TunnelingIsogeometric Boundary Element Methods for Tunneling100-106
Benjamin Marussig, Gernot Beer and Christian Dünser Isogeometric boundary element method for the simulation in tunnelingIsogeometric boundary element method for the simulation in tunneling17-17
Henning Sauerland and Thomas-Peter Fries The stable XFEM for two-phase flows Computers & fluids 2013, 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 MethodsBoundary Element Methods281-298
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 2012, 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 2012, 51-70, 2012 , DOI
H. Sauerland and T. P. Fries The extended finite element method applied to 3D free-surface flowsThe extended finite element method applied to 3D free-surface flows2285-2293
K. W. Cheng and T. P. Fries XFEM with hanging nodes for two-phase incompressible flow Computer methods in applied mechanics and engineering 2012, 290-312, 2012 , DOI
Christian Dünser Determination of excavation loads for the sequential tunnel excavation with the boundary element methodDetermination of excavation loads for the sequential tunnel excavation with the boundary element method309-309
Benjamin Marussig Isogeometric Boundary Element MethodIsogeometric Boundary Element Method141-141
Gernot Beer, Jerzy Rojek, Gerasimus Karlis and Lukasz Jakub Malinowski Adaptive coupling of different numerical methodsAdaptive coupling of different numerical methods
Bernhard Lindner, Christian Dünser and Gernot Beer Simulation of Sequential Tunnel Excavation with the Boundary Element Tearing and Interconnecting MethodSimulation of Sequential Tunnel Excavation with the Boundary Element Tearing and Interconnecting Method1-1
Bernhard Lindner, Christian Dünser and Gernot Beer Simulation of nonlinear problems in tunneling with the boundary element tearing and interconnecting methodSimulation of nonlinear problems in tunneling with the boundary element tearing and interconnecting method306-306
Jürgen Zechner and Gernot Beer A fast elasto-plastic formulation with hierarchical matrices and the boundary element method Computational mechanics 2012, 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 2012, 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 2012, 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 2011, 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 2011, 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 EngineeringPlaying a Game in Civil Engineering417-422
Gernot Beer, Christian Dünser, Jürgen Zechner and Bernhard Lindner Innovative Simulationsmethoden im TunnelbauInnovative Simulationsmethoden im Tunnelbau9-16
Lukasz Jakub Malinowski Iterative Coupling of Boundary and Discrete Element Method Using an Overlapping FEM ZoneIterative Coupling of Boundary and Discrete Element Method Using an Overlapping FEM Zone301-312
2010
Thomas Peter Fries and Ted Belytschko The extended/generalized finite element method International journal for numerical methods in engineering 2010, 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 2010, 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 environmentsMedical training simulators for bilateral sagittal split osteotomy and regional aneasthesia in virtual environments137-140
Kwok Wah Cheng and Thomas Peter Fries Higher-order XFEM for curved strong and weak discontinuities International journal for numerical methods in engineering 2010, 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 constructionCRC Press/Balkema978-0-415-55105-2
Klaus Thöni, Katharina Riederer and Gernot Beer New Developments of the Boundary Element Method with Internal CellsNew Developments of the Boundary Element Method with Internal Cells
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 ConstructionComputer Simulation of Conventional Construction129-161