Dr. Daniel Westhoff

Email address

daniel.westhoff(at)uni-ulm.de

Phone

+49 (0)731/50-23617

Fax

+49 (0)731/50-23649

Mailing address

 
  • Room no. E.62
    Helmholtzstr. 18
    D-89069 Ulm
 

Office hours

on appointment

Publications

Articles in refereed journals

  • J. Feinauer, S. Hein, S. Rave, S. Schmidt, D. Westhoff, J. Zausch, O. Iliev, A. Latz, M. Ohlberger and V. Schmidt, MULTIBAT: Unified workflow for fast electrochemical 3D simulations of lithium-ion cells combining virtual stochastic microstructures, electrochemical degradation models and model order reduction. Journal of Computational Science 31 (2019), 172-184. DOI: 10.1016/j.jocs.2018.03.006
  • J. J. van Franeker, D. Westhoff, M. Turbiez, M. M. Wienk, V. Schmidt and R. A. J. Janssen, Controlling the dominant length scale of liquid-liquid phase separation in spin-coated organic semiconductor films. Advanced Functional Materials 25 (2015), 855–863. DOI: 10.1002/adfm.201403392
  • S. Hein, J. Feinauer, D. Westhoff, I. Manke, V. Schmidt and A. Latz, Stochastic microstructure modelling and electrochemical simulation of lithium-ion cell anodes in 3D. Journal of Power Sources 336 (2016), 161-171. DOI: 10.1016/j.jpowsour.2016.10.057
  • T. Hofmann, D. Westhoff, J. Feinauer, H. Andrä, J. Zausch, V. Schmidt and R. Müller, Electro-chemo-mechanical simulation for lithium ion batteries across the scales. International Journal of Solids and Structures (in print)
  • L. Kremer, A. Hoffmann, T. Danner, S. Hein, B. Prifling, D. Westhoff, C. Dreer, A. Latz, V. Schmidt and M. Wohlfahrt-Mehrens, Manufacturing process for improved ultra-thick cathodes in high-energy Li-ion batteries. Energy Technology (in print)
  • K. Kuchler, D. Westhoff, J. Feinauer, T. Mitsch, I. Manke and V. Schmidt, Stochastic model for the 3D microstructure of pristine and cyclically aged cathodes in Li-ion batteries. Modelling and Simulation in Materials Science and Engineering 26 (2018), 035005. DOI: 10.1088/1361-651X/aaa6da
  • L. Petrich, J. Stanek, M. Wang, D. Westhoff, L. Heller, P. Sittner, C. E. Krill III, V. Benes and V. Schmidt, Reconstruction of grains in polycrystalline materials from incomplete data using Laguerre tessellations. Microscopy and Microanalysis 25 (2019), 743-752. DOI: 10.1017/S1431927619000485
  • L. Petrich, D. Westhoff, J. Feinauer, D. P. Finegan, S. R. Daemi, P. R. Shearing and V. Schmidt, Crack detection in lithium-ion cells using machine learning. Computational Materials Science 136 (2017), 297-305. DOI: 10.1016/j.commatsci.2017.05.012
  • P. Pietsch, D. Westhoff, J. Feinauer, J. Eller, F. Marone, M. F. M. Stampanoni, V. Schmidt and V. Wood, Quantifying microstructural dynamics and electrochemical activity of graphite and silicon-graphite lithium ion battery anodes. Nature Communications 7 (2016), 12909. DOI: 10.1038/ncomms12909
  • B. Prifling, D. Westhoff, D. Schmidt, H. Markötter, I. Manke, V. Knoblauch and V. Schmidt, Parametric microstructure modeling of compressed cathode materials for Li-ion batteries. Computational Materials Science 169 (2019), 109083 (in print), DOI: 10.1016/j.commatsci.2019.109083
  • O. Sedivy, T. Brereton, D. Westhoff, L. Polivka, V. Benes, V. Schmidt and A. Jaeger, 3D reconstruction of grains in polycrystalline materials using a tessellation model with curved grain boundaries. Philosophical Magazine 96 (2016), 1926-1949. DOI: 10.1080/14786435.2016.1183829
  • O. Sedivy, D. Westhoff, J. Kopecek, C. E. Krill III and V. Schmidt, Data-driven selection of tessellation models describing polycrystalline microstructures. Journal of Statistical Physics 172 (2018), 1223-1246. DOI:  10.1007/s10955-018-2096-8
  • O. Stenzel, D. Westhoff, I. Manke, M. Kasper, D. P. Kroese and V. Schmidt, Graph-based simulated annealing: A hybrid approach to stochastic modeling of complex microstructures. Modelling and Simulation in Materials Science and Engineering 21 (2013), 055004. DOI: 10.1088/0965-0393/21/5/055004
  • D. Westhoff, T. Danner, S. Hein, A. Hoffmann, R. Scurtu, L.S. Kremer, A. Hilger, I. Manke, M. Wohlfahrt-Mehrens, A. Latz and V. Schmidt, Analysis of microstructural effects in multi-layer lithium-ion battery cathodes. Materials Characterization 151 (2019), 166-174. DOI: 10.1016/j.matchar.2019.02.031
  • D. Westhoff, J. Feinauer, K. Kuchler, T. Mitsch, I. Manke, S. Hein, A. Latz and V. Schmidt, Parametric stochastic 3D model for the microstructure of anodes in lithium-ion power cells. Computational Materials Science 126 (2017), 453-467. DOI: 10.1016/j.commatsci.2016.09.006
  • D. Westhoff, D. P. Finegan, P. R. Shearing and V. Schmidt, Algorithmic structural segmentation of defective particle systems: A lithium-ion battery study. Journal of Microscopy 270 (2018), 71-82. DOI: 10.1111/jmi.12653
  • D. Westhoff, K. Kuchler, J. Feinauer, L. Petrich and V. Schmidt, Analysis, modeling and simulation of tomographic image data for the 3D microstructure of electrode material in lithium-ion batteries. Practical Metallography 55 (2018), 134-146. DOI: 10.3139/147.110501
  • D. Westhoff, I. Manke and V. Schmidt, Generation of virtual lithium-ion battery electrode microstructures based on spatial stochastic modeling. Computational Materials Science 151 (2018), 53-64. DOI: 10.1016/j.commatsci.2018.04.060
  • D. Westhoff, J. Skibinski, O. Sedivy, B. Wysocki, T. Wejrzanowski and V. Schmidt, Investigation of the relationship between morphology and permeability for open-cell foams using virtual materials testing. Materials & Design 147 (2018), 1-10. DOI: 10.1016/j.matdes.2018.03.022
  • D. Westhoff, J. J. van Franeker, T. Brereton, D. P. Kroese, R. A. J. Janssen and V. Schmidt, Stochastic modeling and predictive simulations for the microstructure of organic semiconductor films processed with different spin coating velocities. Modelling and Simulation in Materials Science and Engineering 23 (2015), 045003. DOI: 10.1088/0965-0393/23/4/045003

Articles in edited volumes and conference proceedings

  • J. Feinauer, D. Westhoff, K. Kuchler, and V. Schmidt, 3D microstructure modeling and simulation of materials in lithium-ion battery cells. In: M. Baum, G. Brenner, J. Grabowski, T. Hanschke, S. Hartmann, and A. Schöbel (eds.), Simulation Science: Proceedings of the Clausthal-Göttingen International Workshop on Simulation Science, Göttingen 2017. Communications in Computer and Information Science (CIS), Springer 2018, pp. 128-144. DOI: 10.1007/978-3-319-96271-9_8
  • O. Furat, B. Prifling, D. Westhoff, M. Weber and V. Schmidt, Statistische Analyse und Modellierung von komplexen Partikelsystemen in 3D mittels tomographischer Bilddaten. In: H. Clemens, S. Mayer and M. Panzenböck (eds.) Fortschritte in der Metallographie. Sonderband der Praktischen Metallographie zur 15. Internationalen Metallographie-Tagung in Leoben, 19.-21.09.2018, pp. 341-346.
  • T. Hofmann, D. Westhoff, J. Feinauer, H. Andrä, J. Zausch, V. Schmidt and R. Müller, Electro-chemo-mechanical simulation of 3D microstructures for lithium-ion batteries. Proceedings of the 6th European Conference on Computational Mechanics, Glasgow 2018, pp. 123 - 134.
  • D. Westhoff, K. Kuchler, J. Feinauer, L. Petrich and V. Schmidt, Analyse, Modellierung und Simulation von tomographischen Bilddaten für die 3D Mikrostruktur von Elektrodenmaterial in Lithium-Ionen-Batterien. In: T. Bernthaler and G. Schneider (eds.) Fortschritte in der Metallographie. Sonderband der Praktischen Metallographie zur 51. Metallographie-Tagung in Aalen, 13.-15.09.2017, pp. 189-194.

Teaching (Exercise Sessions)

SemesterCourse
SS 2016Angewandte Stochastik I
WS 2015/16Angewandte Stochastik II
SS 2015Angewandte Stochastik I
WS 2014/15Angewandte Stochastik II
SS 2014Wirtschaftsstatistik