Dr.-Ing. Christoph Hartmann

Akademischer Rat

Telefon:   +49 (0)89 / 289 - 13769
E-Mail:    christoph.hartmann@utg.de
Raum:     0445

Dissertation (2021)

Spatio-Temporal Optical Flow Methods for Process Analysis

ORCID iD

Forschungs- und Arbeitsschwerpunkte

  • Mitglied der Lehrstuhlleitung
  • Verantwortung und Koordination des Forschungsfelds "Hybride, daten- und physikgetriebene Modellbildung"
    • Schlecht gestellte Probleme
    • Inverse Analysen
    • Ersatzmodelle
    • Physikalisch inspiriertes Machine Learning
    • Computer Vision, Sensorik und Wahrnehmung
  • Optische Messtechnik und Deformationsanalyse
  • Inkrementelle Prozesse und additive Fertigung
  • Modellierung von Geometrie und physikalischen Eigenschaften gefertigter Bauteile
  • Thermomechanische Wechselwirkungen in dynamischen Prozessen

Veröffentlichungen

2022

  • Lechner, P.; Reberger, E.; Gruber, M.; Kammerloher, S.; Hartmann, C.; Volk, W.: Localization of Cavities in Cast Components via Impulse Excitation and a Finite Element Analysis. Production Engineering, 2022 mehr…
  • Maier, L.; Hartmann, C.; Ünver, B.; Volk, W.: Three-Dimensional Control Point Based Surface Description for Data Reduction, Reverse Engineering and Springback Compensation in Sheet Metal Forming. In: The Minerals, Metals &Materials Series. Springer International Publishing, 2022 mehr…
  • Scandola, L.; Maier, D.; Werner, M. K.; Hartmann, C.; Volk, W.: Automatic Extraction and Conversion of the Bending Line from Parametric and Discrete Data for the Free-Form Bending Process. In: The Minerals, Metals &Materials Series. Springer International Publishing, 2022 mehr…
  • Vitzthum, S.; Rebelo Kornmeier, J.; Hofmann, M.; Gruber, M.; Maawad, E.; Batista, A.; Hartmann, C.; Volk, W.: In-situ analysis of the thermoelastic effect and its relation to the onset of yielding of low carbon steel. Materials & Design 219, 2022, 110753 mehr…

2021

  • Hartmann, C.; Maier, L.; Volk, W.: Springback and compensation in sheet metal forming reconsidered as an ill-posed problem. IOP Conference Series: Materials Science and Engineering 1157 (1), 2021, 12044 mehr…
  • Hartmann, C.; Weiss, H.A.; Lechner, P.; Volk, W.; Neumayer, S.; Fitschen, J.H.; Steidl, G.: Measurement of strain, strain rate and crack evolution in shear cutting. Journal of Materials Processing Technology 288, 2021, 116872 mehr…
  • Hartmann, C.; Welm, M.; Schreyer, S.; Hartmann, C.; Volk, W.: A Modular Car Body for Sustainable, Cost-Effective ,and Versatile Vehicle Development Zeitschriftentitel: MDPI Technologies. MDPI Technologies 9, 2021, 1-9 mehr…
  • Lechner, P.; Hartmann, C.; Ettemeyer, F.; Volk, W.: A Plane Stress Failure Criterion for Inorganically-Bound Core Materials. Materials 14 (2), 2021 mehr…
  • Maier, L.; Hartmann, C.; Volk, W.: Parameterized data handling for forming tool tryout: reverse engineering, data consolidation and springback compensation. IOP Conference Series: Materials Science and Engineering 1157 (1), 2021, 12035 mehr…
  • Ott, M.; Haberkern, P.; Gruber, M.; Hartmann, C.; Risch, T.; Wunderling, C.; Albers, A.; Volk, W.: Load-specific variant generation of bead cross sections in sheet metal components by unidirectional carbon fibre reinforcement. IOP Conference Series: Materials Science and Engineering 1157 (1), 2021, 012093 mehr…

2020

  • Lechner, P.; Fuchs, G.; Hartmann, C.; Steinlehner, F.; Ettemeyer, F.; Volk, W.: Acoustical and Optical Determination of Mechanical Properties of Inorganically-Bound Foundry Core. Materials (13), 2020 mehr…

2019

  • Hartmann, C.; Volk, W.: Digital image correlation and optical flow analysis based on the material texture with application on high-speed deformation measurement in shear cutting. Digital Image & Signal Processing, Corgascience, UK, 2019International Conference on Digital Image & Signal Processing (DISP 2019), 1-8 mehr…
  • Benkert, T.; Hartmann, C.; Eder, M.; Spekcmaier, F.; Volk, W.: MaterialModeler - From experimental raw data to a material model. SoftwareX 10, 2019, 100249 mehr…
  • Hartmann, C.; Hammerl, F.; Volk, W.: Experimental analysis of Roman coin minting. Journal of Archaeological Science: Reports 25, 2019, 498-506 mehr…
  • Hartmann, C.; Lechner, P.; Himmel, B.; Krieger, Y.; Lueth, T.C.; Volk, W.: Compensation for Geometrical Deviations in Additive Manufacturing. MDPI Technologies 7, 2019, 1-13 mehr…
  • Hartmann, C.; Opritescu, D.; Volk, W.: An artificial neural network approach for tool path generation in incremental sheet metal free-forming. Journal of Intelligent Manufacturing 30, 2019, 757-770 mehr…
  • Hartmann, C.; Volk, W: Variational methods in comparison to digital image correlation for full field deformation analysis under variable conditions. Determination and validation of material parameters for sheet metal simulation, Institute of Metal Forming and Casting, Technical University of Munich , 201912th Forming Technology Forum 2019, 1-7 mehr…
  • Hartmann, C.; Volk, W.: Knowledge-based incremental sheet metal free-forming using probabilistic density functions and voronoi partitioning. Procedia Manufacturing 29, 2019, 4-11 mehr…
  • Maier, D.; Hartmann, C.; Till, M.; Büdenbender, C.; Behrens, B.; Volk, W.: Data-Driven Compensation for Bulk Formed Parts Based on Material Point Tracking. Key Engineering Materials, 2019, 277-284 mehr…
  • Opritescu, D.; Hartmann, C.; Riedl, W.; Ritter, M.; Volk, W.: Low-risk bypassing of machine failure scenarios in automotive industry press shops by releasing overall capacity of the production networks. Journal of Manufacturing Systems 52 / Part A , 2019, 121-130 mehr…
  • Vitzthum, S.; Hartmann, C.; Eder, M.; Volk, W.: Temperature-based determination of the onset of yielding using a new clip-on device for tensile tests. 18th International Conference on Sheet Metal, SHEMET, 2019, 490-497 mehr…

2018

  • Hartmann, C.; Eder, M.; Opritescu, D.; Maier, D.; Santaella, M.; Volk, W.: Geometrical compensation of deterministic deviations for part finishing in bulk forming. Journal of Materials Processing Technology 261, 2018, 140-148 mehr…
  • Hartmann, C.; Wang, J.; Opritescu, D.; Volk, W.: Implementation and evaluation of optical flow methods for two-dimensional deformation measurement in comparison to digital image correlation. Optics and Lasers in Engineering 107, 2018, 127-141 mehr…
  • Mittler, T.; Greß, T.; Westerwick, J.; Honsel, C.; Hartmann, E.: Energie- und materialeffiziente Herstellung von Kupfer-Verbundhalbzeugen mittels Verbundgießen. Abschlussbericht 32334/01-21, 2018 mehr…
  • Vitzthum, S.; Eder, M.; Hartmann, C; Volk, W.: Investigation on strain dependent elastic behavior for accurate springback analysis. Journal of Physics: Conference Series Volume 1063, 2018 mehr…

2017

  • Eder, M.; Hartmann, C.; Opritescu, D.; Maier, D.; Volk, W.: Geometrical Compensation of Deterministic Deviations for Bulk Forming. Korea-Workshop, Sogang University (Seoul); KAIST (Daejeon), 2017 mehr…
  • Eder, M.; Hartmann, C.; Volk, W.: Geometriebasierte prozessbegleitende Abweichungskompensation. massivUMFORMUNG, 2017, 66-71 mehr…
  • Hartmann, C.; Eder, M.; Opritescu D.; Volk, W.: Process-integrated Compensation of Geometrical Deviations for Bulk Forming. International Conference on the Technology of Plasticity, Elsevier, 2017, 466-471 mehr…
  • Hartmann, C.; Volk, W.: Individualized sheet metal part manufacturing by an incremental free-forming process. Korea-Workshop, Sogang University (Seoul); KAIST (Daejeon), 2017 mehr…
  • Vitzthum, S. J.; Hartmann, C.; Weiss, H. A.; Baumgartner, G.; Hofmann, M.; Volk, W.: Determination of crystallographic young’s modulus for sheet metals by in situ neutron diffraction. Journal of Physics: Conference Series 896, 2017, 012123 mehr…
  • Volk W.; Weinschenk A.; Hartmann C.; Eder M.: New Strategy for Prevention and Compensation of Springback for Metal Forming Applications. HxGN LIVE 2017, 2017 mehr…
  • Volk, W.; Hartmann, C.; Hiller, M.; Opritescu, D.; Weinschenk, A.; Feistle, M.; Krinninger, M.: Umformen und Schneiden von Blechbauteilen – 5-1. In: Handbuch Stahl: Auswahl, Verarbeitung, Anwendung. Carl Hanser Verlag, 2017, 105-129 mehr…

2016

  • Opritescu, D.; Hartmann, C.; Volk, W.: Efficient parameterized characterization of manufacturing strategies for automated copied driving. Procedia CIRP  41, 2016, 1090-1095 mehr…
  • Volk, W.; Hartmann, C.; Feistle, M.; Gaber, C.; Jocham, D.; Weiss, H. A.: Advanced Methods in Sheet Metal Testing - Material Characterization and Prediction of Local Properties. Advanced Methods in Material Testing for Sheet Metal Forming, Institute of Metal Forming and Casting, Technical University of Munich , 20169th Forming Technology Forum 2016 , 3-8 mehr…