An extended biphasic model for charged hydrated tissues with application to the intervertebral disc W Ehlers, N Karajan, B Markert Biomechanics and modeling in mechanobiology 8 (3), 233, 2009 | 102 | 2009 |

A general polyconvex strain‐energy function for fiber‐reinforced materials B Markert, W Ehlers, N Karajan PAMM: Proceedings in Applied Mathematics and Mechanics 5 (1), 245-246, 2005 | 62 | 2005 |

A forward dynamics simulation of human lumbar spine flexion predicting the load sharing of intervertebral discs, ligaments, and muscles TK Rupp, W Ehlers, N Karajan, M Günther, S Schmitt Biomechanics and modeling in mechanobiology 14 (5), 1081-1105, 2015 | 50 | 2015 |

Surrogate modeling of multiscale models using kernel methods D Wirtz, N Karajan, B Haasdonk International Journal for Numerical Methods in Engineering 101 (1), 1-28, 2015 | 39 | 2015 |

A porous media model describing the inhomogeneous behaviour of the human intervertebral disc W Ehlers, N Karajan, B Markert Materialwissenschaft und Werkstofftechnik: Entwicklung, Fertigung, Prüfung …, 2006 | 29 | 2006 |

Multiphasic intervertebral disc mechanics: theory and application N Karajan Archives of computational methods in engineering 19 (2), 261-339, 2012 | 27 | 2012 |

An extended biphasic description of the inhomogeneous and anisotropic intervertebral disc N Karajan | 26 | 2009 |

Linking continuous and discrete intervertebral disc models through homogenisation N Karajan, O Röhrle, W Ehlers, S Schmitt Biomechanics and modeling in mechanobiology 12 (3), 453-466, 2013 | 25 | 2013 |

Advances in modelling saturated soft biological tissues and chemically active gels W Ehlers, A Acartürk, N Karajan Archive of Applied Mechanics 80 (5), 467-478, 2010 | 19 | 2010 |

On the parameter estimation for the discrete-element method in LS-DYNA® N Karajan, Z Han, H Teng, J Wang Proceedings of the 13th International LS_DYNA Users Conference, Dearborn, MI …, 2014 | 18 | 2014 |

Interaction possibilities of bonded and loose particles in LS-DYNA N Karajan, Z Han, H Ten, J Wang 9th European LS-DYNA Conference, 1-27, 2013 | 13 | 2013 |

Parallel solution methods for porous media models in biomechanics C Wieners, W Ehlers, M Ammann, N Karajan, B Markert PAMM: Proceedings in Applied Mathematics and Mechanics 5 (1), 35-38, 2005 | 12 | 2005 |

A coupled FE analysis of the intervertebral disc based on a multiphasic TPM formulation W Ehlers, B Markert, N Karajan, A Acartürk Mechanics of Biological Tissue, 405-419, 2006 | 11 | 2006 |

Model order reduction of multiscale models using kernel methods D Wirtz, N Karajan, B Haasdonk Preprint, University of Stuttgart, SRC SimTech, 2013 | 10 | 2013 |

Application of the polynomial chaos expansion to approximate the homogenised response of the intervertebral disc N Karajan, D Otto, S Oladyshkin, W Ehlers Biomechanics and modeling in mechanobiology 13 (5), 1065-1080, 2014 | 7 | 2014 |

Âşık ve Ozan Kavramlarının Günümüz Türkiye’sinde Müzikal ve Edebi Yönden Tanımlanması E ÖZDEMİR Akademik Bakış Dergisi 34, 1-17, 2013 | 7 | 2013 |

Coupling possibilities in LS-DYNA: development status and sample applications I Çaldichoury, F Del Pin, P Eplattenier, D Lorenz, N Karajan NAFEMS European Conference: Multiphysics Simulation 2012, 16-17, 2012 | 5 | 2012 |

Parallel 3-d simulation of a biphasic porous media model in spine mechanics W Ehlers, N Karajan, C Wieners Proceedings of the 2nd GAMM Seminar on Continuum Biomechanics, Report No. II …, 2007 | 5 | 2007 |

FE treatment of inhomogeneitieswithin the intervertebral disc N Karajan, W Ehlers, B Markert, A Acartürk, C Wieners PAMM: Proceedings in Applied Mathematics and Mechanics 5 (1), 237-238, 2005 | 5 | 2005 |

Comparison of a biphasic and a multicomponent model describing viscoelastic swelling phenomena A Acartürk, W Ehlers, N Karajan, B Markert PAMM: Proceedings in Applied Mathematics and Mechanics 5 (1), 371-372, 2005 | 5 | 2005 |