Dr.-Eng. Andreas Apostolatos


Picture of Andreas Apostolatos

Curriculum vitae

since 2018 Postdoctoral Researcher/Research Associate at Chair of Structural Analysis, Prof. Dr.-Ing. K.-U. Bletzinger
2012-2018 Ph.D. Candidate/Research Associate at Chair of Structural Analysis, Prof. Dr.-Ing. K.-U. Bletzinger
2010-2012 M.Sc. with honors in Computational Mechanics, Technical University of Munich
2009-2010 Military service
2008-2009 Exchange student at the Charles University of Prague, Czech Republic
2003-2009 Diploma in Applied Mathematics, National Technical University of Athens, Greece

Research

Teaching

Lectures

  • Introduction to Finite Element Methods / FEM I
  • Advanced Finite Element Methods / FE-Technology
  • Isogeometric Structural Analysis and Design

 Supervision of Bachelor theses

  • Vasiliki Georgoula
    Implementation and comparison of the finite element formulation for different beam theories
    2016

 Supervision of master theses

  • Carlos Mauro Osorio
    A parallelized embedded fluid-structure interaction approach for thin-walled isogeometric structures
    2017
  • Apostolos Petalas
    Implementation and validation of an isogeometric barycentric mapper with application to partitioned fluid-structure interaction using an embedded cfd solver
    2016
  • Ragnar Björnsson
    Implementation and evaluation of the penalty method for non-matching patch coupling in isogeometric mortar-based analysis
    2016
  • Fabien Péan
    Implementation of the mortar method for trimmed multipatch NURBS surfaces and its application in fsi and shape optimization
    2015
  • Chenshen Wu
    Implementation and verification of non-matching grid transfer schemes for fluid-structure interaction problems in isogeometric analysis within the empire framework
    2014

Publications

Journal publications

2019

  • Apostolatos, Andreas; Bletzinger, Kai-Uwe; Wüchner, Roland: Weak imposition of constraints for structural membranes in transient geometrically nonlinear isogeometric analysis on multipatch surfaces. Computer Methods in Applied Mechanics and Engineering, 2019 more… BibTeX Full text ( DOI )
  • Apostolatos, Andreas; Nayer, Guillaume De; Bletzinger, Kai-Uwe; Breuer, Michael; Wüchner, Roland: Systematic evaluation of the interface description for fluid–structure interaction simulations using the isogeometric mortar-based mapping. Journal of Fluids and Structures 86, 2019, 368 - 399 more… BibTeX Full text ( DOI )

2018

  • Apostolatos, Andreas; Bletzinger, Kai-Uwe; Wüchner, Roland: Nitsche's method for form-finding of multipatch isogeometric membrane analysis. PAMM 18 (1), 2018, e201800106 more… BibTeX Full text ( DOI )
  • G. De Nayer and A. Apostolatos and J.N. Wood and K.U. Bletzinger and R. Wüchner and M. Breuer: Numerical studies on the instantaneous fluid–structure interaction of an air-inflated flexible membrane in turbulent flow. Journal of Fluids and Structures 82, 2018, 577 - 609 more… BibTeX Full text ( DOI )
  • Wüchner, Roland; Apostolatos, Andreas; de Nayer, Guillaume; Breuer, Michael; Bletzinger, Kai-Uwe: Coupled simulations involving light-weight structures within turbulent flows: FSI strategy and non-matching interface treatment for isogeometric b-rep analysis. PAMM 18 (1), 2018, e201800107 more… BibTeX Full text ( DOI )
  • de Nayer, Guillaume; Wood, Jens Nikolas; Breuer, Michael; Apostolatos, Andreas; Wüchner, Roland: Coupled Simulations Involving Light-weight Structures within Turbulent Flows: A Complementary Experimental and Numerical Application. PAMM 18 (1), 2018, e201800030 more… BibTeX Full text ( DOI )

2015

  • Breitenberger, M.; Apostolatos, A.; Philipp, B.; Wüchner, R.; Bletzinger, K.-U.: Analysis in computer aided design: Nonlinear isogeometric B-Rep analysis of shell structures. Computer Methods in Applied Mechanics and Engineering 284, 2015, 401--457 more… BibTeX Full text ( DOI )

2014

  • Apostolatos, A.; Schmidt, R.; Wüchner, R.; Bletzinger, K.-U.: A Nitsche-type formulation and comparison of the most common domain decomposition methods in isogeometric analysis. International Journal for Numerical Methods in Engineering 97 (7), 2014, 473-504 more… BibTeX Full text ( DOI )

Book chapters

2015

  • Apostolatos, A.; Breitenberger, M.; Wüchner, R.; Bletzinger, K.-U.: Domain decomposition methods and Kirchhoff-Love shell multipatch coupling in isogeometric analysis. In: Isogeometric Analysis and Applications 2014. Springer International Publishing, 2015 more… BibTeX

Conference presentations

2019

  • Apostolatos, Andreas; Bletzinger, Kai-Uwe; Wüchner, Roland: An isogeometric b-rep mortar-based mapping method in fluid-structure interaction. YIC 2019 The 5th ECCOMAS Young Investigators Conference, 2019 more… BibTeX

2018

  • Apostolatos, A.; Wüchner, R.; Bletzinger, K. U.: Weak imposition of constraints for multipatch membrane structures in transient geometrically nonlinear isogeometric analysis. 89th GAMM Annual Meeting, Technical University of Munich, 2018 more… BibTeX
  • Apostolatos, A.; Emiroglu, A.; S., Shayegan; Wüchner, R.; K.-U., Bletzinger: IBRA in Partitioned FSI with Application to Aeroelastic Wind Turbine Simulations. IGA 2018: Integrating Analysis and Design, Austin, Texas, 2018 more… BibTeX

2017

  • Apostolatos, A.; Péan, F.; Emiroglu, A.; Wüchner, R; Bletzinger, K.-U.: An isogeometric mortar surface coupling method for trimmmed multipatch cad geometries with application to fsi. 7th GACM Colloquium on Computational Mechanics, 2017 more… BibTeX
  • Emiroglu, A.; Apostolatos, A.; Wüchner, R.; Bletzinger, K.-U.: Regenerating cad Models with opencascade and pythonocc from numerical models with application to shape optimization. 7th GACM Colloquium on Computational Mechanics, 2017 more… BibTeX

2016

  • Apostolatos, A.; Breitenberger, M.; Wüchner, R.; Bletzinger, K.-U.: A nitsche-type method for the multipatch coupling and the application of weak Dirichlet boundary conditions in transient nonlinear isogeometric membrane analysis. High Order Finite Element and Isogeometric Methods 2016, 2016 more… BibTeX

2015

  • Apostolatos, A.; Breitenberger, M.; Fabien, P.; Emiroglu, A.; Wüchner, R.; Bletzinger, K.-U.: Multipatch isogeometric analysis for thin-walled structures with application to partitioned fluid-structure interaction. 6th GACM Colloquium on Computational Mechanics, Aachen, 2015 more… BibTeX
  • Emiroglu, A.; Apostolatos, A.; Bletzinger, K.-U.: An exact coupling layer for the smoothening of the load and motion transfer in partitioned fluid-structure interaction with application to multi-disciplinary design optimization. Workshop on Numerical Methods for Optimal Control and Inverse Problems, Munich, 2015 more… BibTeX
  • M. Breitenberger, B. Philipp, A. Apostolatos, R. Wüchner, K.-U Bletzinger: Analyzing complex CAD models in a finite-element-like manner with the isogeometric B-Rep analysis. IGA 2015, Trondheim, 2015 more… BibTeX

2014

  • Apostolatos, A.; Breitenberger, M.; Wüchner, R.; Bletzinger, K.-U.: A penalty formulation for coupling of Kirchhoff-Love shell multi-patches in isogeometric analysis. Isogeometric Analysis and Applications, Annweiler am Trifels, 2014 more… BibTeX
  • Breitenberger, M.; Apostolatos, A.; Chen, L.; Wüchner, R.; Bletzinger, K.-U.: Nonlinear Isogeometric B-Rep Analysis of Trimmed Multi-Surface CAD models for Realizing an Efficient Integrated Design-Through-Analysis Workflow in the CAD-CAE Software Siemens NX 8.5. Isogeometric Analysis: Integrating Design and Analysis, Austin, 2014 more… BibTeX
  • Breitenberger, M.; Apostolatos, A.; Chen, L.; Wüchner, R.; Bletzinger, K.-U.: Realization of an Analysis in Computer Aided Design (AiCAD) Workflow in the CAD software Siemens NX 8.5 using the Isogeometric B-Rep Analysis. Isogeometric Analysis and Applications, Annweiler am Trifels, 2014 more… BibTeX

2013

  • Apostolatos, A.; Wüchner, R.; Bletzinger, K.-U.: Non-matching grid transfer schemes for partitioned fluid-structure interaction simulations using isogeometric analysis. 5th GACM Colloquium on Computational Mechanics, Hamburg, 2013 more… BibTeX
  • Wüchner, R.; Wang, T.; Sicklinger, S.; Schmidt, R.; Apostolatos, A.; Bletzinger, K.-U.: Partitioned multifield simulation for analysis and design of free-form, light-weight structures subject to wind. Advances in Computational Mechanics, San Diego, 2013 more… BibTeX