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Logo Werkstoffprüftechnik Prof. Dr.-Ing. habil. Frank Walther
Faculty of Mechanical Engineering
Group photo of the WPT © Teschke​/​TU Dortmund
Scientific Assistant

M.Sc. Lars Gerdes

Lars Gerdes

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Phone: +49 231 755 8024

Fax: +49 231 755 8029

Room:  1.015

ORCID iD : http://orcid.org/0000-0002-9538-8444

Main activities

Overview of research projects in group composites

Curriculum Vitae

Academic Education

2019 M.Sc. in Mechanical Engineering, TU Dortmund University, Germany
2015 - 2019 Study in Mechanical Engineering, TU Dortmund University, Germany
2015 B.Eng. in Engineering of technical Systems, Osnabrück University of Applied Sciencese, Germany
2015 Certificate of apprenticeship for precision mechanics
2012 - 2015 Study in Engineering of technical Systems, Osnabrück University of Applied Sciences, Germany

Research

Publications and presentations

13) Gerdes, L.; Franck, P.; Richle, S.; Barandun, G.A.; Walther, F.:
Fatigue assessment of carbon fiber-reinforced polyurethane with regard to crack initiation and propagation.
Engineering 4 (2), (2023) 1009-1022. https://doi.org/10.3390/eng4020060 - Download

12) Mrzljak, S.; Zanghellini, B.; Gerdes, L.; Helwing, R.; Schuller, R.; Sinn, G.; Lichtenegger, H.; Walther, F.; Rennhofer, H.:
Effect of carbon nanofibre orientation on fatigue properties of carbon fibre-reinforced polymers.
Journal of Composite Materials 57 (6), (2023) 1149-1164. https://doi.org/10.1177/00219983221150496 - Download

11) Hülsbusch, D.; Mrzljak, S.; Helwing, R.; Gerdes, L.; Walther, F.:
Schädigungsorientierte Charakterisierung des Ermüdungsverhaltens glasfaserverstärkter Kunststoffe vom LCF- bis VHCF-Bereich.
Werkstoffprüfung 2022 - Werkstoffe und Bauteile auf dem Prüfstand, Hrsg.: M. Zimmermann, ISBN 978-3-88355-430-3 (2022) 13-23.

10) Mrzljak, S.; Gerdes, L.; Keuntje, J.; Wippo, V.; Jaeschke, P.; Walther, F. :
Assessment of laser cutting parameters and heat-affected zone on microstructure and fatigue behaviour of carbon fibre-reinforced epoxy.
Part E: Journal of Process Mechanical Engineering, (2022) 1-9. https://doi.org/10.1177/09544089221139656 - Download

9) Gerdes, L.; Berger, S.; Saelzer, J.; Franck, P.; Helwing, R.; Zabel, A.; Walther, F.:
Application-oriented digital image correlation for the high-speed deformation and fracture analysis of AISI 1045 and Ti6Al4V materials.
Applied Mechanics 3 (4), (2022) 1190-1205. https://doi.org/10.3390/applmech3040068 - Download

8) Keuntje, J.; Mrzljak, S.; Gerdes, L.; Wippo, V.; Kaierle, S.; Overmeyer, L.; Walther, F.; Jaeschke, P.:
Macroscopic simulation model for laser cutting of carbon fibre reinforced plastics.
Procedia CIRP 111 (2022) 496-500. https://doi.org/10.1016/j.procir.2022.08.078 - Download

7) Gerdes, L.; Richle, S.; Mrzljak, S.; Hülsbusch, D.; Barandun, G. A.; Walther, F.:
Computed tomography-based characterization of impact and fatigue after impact behavior of carbon fiber-reinforced polyurethane.
Composite Structures 289, 115474 (2022) 1-7. https://doi.org/10.1016/j.compstruct.2022.115474

6) Rocker, S.; Schiffers, R.; Gerdes, L.; Hülsbusch, D.; Walther, F.:
Lifetime prediction of continuous fiber-reinforced plastics based on nonlinear damage accumulation and finite element simulations.
ANTEC 2021 - Conference Proceedings of the 2021 SPE Annual Technical Conference, ISBN 978-1-7138-3075-7 (2021) 445-450.

5) Strodick, S.; Schmidt, R.; Gerdes, L.; Zabel, A.; Biermann, D.; Walther, F.:
Impact of cutting parameters on the mechanical properties of BTA deep drilled components under quasi-static compression.
Procedia CIRP 103 (2021) 207-212. https://doi.org/10.1016/j.procir.2021.10.033 - Download

4) Kotzem, D.; Gerdes, L.; Walther, F.:
Microstructure and strain rate-dependent deformation behavior of PBF-EB Ti6Al4V lattice structures.
Materials Testing 63 (6), (2021) 529-536. https://doi.org/10.1515/mt-2020-0087

3) Striemann, P.; Gerdes, L.; Hülsbusch, D.; Niedermeier, M.; Walther, F.:
Interlayer bonding capability of additively manufactured polymer structures under high strain rate tensile and shear loading.
Polymers 13, 1301 (2021) 1-11. https://doi.org/10.3390/polym13081301 - Download

2) Otto, J. L.; Penyaz, M.; Möhring, K.; Gerdes, L.; Schaum, T.; Ivannikov, A.; Schmiedt-Kalenborn, A.; Kalin, B.; Walther, F.:
Microstructure, residual stresses, and strain-rate-dependent deformation and fracture behavior of AISI 304L joints brazed with NiCrSiB filler metals.
Metals 11 (4), 593 (2021) 1-24. https://doi.org/10.3390/met11040593 - Download

1) Gerdes, L.; Mrzljak, S.; Hülsbusch, D.; Walther, F.:
Korrelation der Energieabsorption und des Versagensverhaltens für hochdynamische Beanspruchung von glasfaserverstärktem Epoxid.
Werkstoffprüfung 2020 – Werkstoffe und Bauteile auf dem Prüfstand (2020), Hrsg.: J. B. Langer und M. Wächter. https://doi.org/10.48447/WP-2020-011

 

List of all publications

9) Gerdes, L. (Sp.); Richle, S.; Barandun, G. A.; Walther, F.:
3D-DIC-gestützte Charakterisierung der Fatigue after Impact-Eigenschaften von kohlenstofffaserverstärktem Polyurethan.
AG Strukturelle Integrität und UAG Composite Fatigue, Ulm, 10. Nov. (2022).

8) Hülsbusch, D. (Sp.); Mrzljak, S.; Helwing, R.; Gerdes, L.; Walther, F.:
Schädigungsorientierte Charakterisierung des Ermüdungsverhaltens glasfaserverstärkter Kunststoffe vom LCF- bis VHCF-Bereich.
Werkstoffprüfung 2022, Dresden, 27.-28. Oct. (2022).

7) Gerdes, L. (Sp.); Richle, S.; Hülsbusch, D.; Barandun, G.A.; Walther, F.:
Analysis of the influence of impact damage on fatigue properties of carbon fiber-reinforced polyurethane by 3D digital image correlation.
Verbund 2022, 23. Symposium Verbundwerkstoffe und Werkstoffverbunde, Leoben, Austria, 20.-22. July (2022).

6) Gerdes, L. (Sp.); Mrzljak, S.; Keuntje, J.; Wippo, V.; Jaeschke, P.; Walther, F.:
Microstructure-oriented methodology for fatigue performance characterization of laser cut carbon fiber-reinforced polymer.
4a Technology Days 2022, Schladming, Austria, 27.-29. June (2022).

5) Mrzljak, S. (Sp.); Gerdes, L.; Keuntje, J.; Wippo, V.; Jäschke, P.; Walther, F.:
Assessment of laser cutting parameters and heat affected zone on microstructure and fatigue behavior of carbon fiber-reinforced epoxy.
1st International Conference on Engineering Manufacture, Porto, Portugal, 05.-06. May (2022).

4) Strodick, S. (Sp.); Schmidt, R.; Gerdes, L.; Zabel, A.; Biermann, D.; Walther, F.:
Impact of cutting parameters on the mechanical properties of BTA deep drilled components under quasi-static compression.
CIRPe 2021, 9th CIRP Global Web Conference, Web Conference, 26.-28. Oct. (2021).

3) Gerdes, L. (Sp.); Richle, S.; Mrzljak, S.; Hülsbusch, D.; Barandun, G. A.; Walther, F.:
Computed tomography-based characterization of impact and fatigue after impact behavior of carbon fiber reinforced polyurethane.
MECHCOMP7, 7th International Conference on Mechanics of Composites, Web Conference, Portugal, 01.-03. Sept. (2021).

2) Gerdes, L. (Sp.); Mrzljak, S.; Hülsbusch, D.; Walther, F.:
Korrelation der Energieabsorption und des Versagensverhaltens für hochdynamische Beanspruchung von glasfaserverstärktem Epoxid.
Werkstoffprüfung 2020, Web-Konferenz, 03.-04. Dez. (2020).

1) Hülsbusch, D. (Sp.); Mrzljak, S.; Helwing, R.; Gerdes, L.; Walther, F.:
Ermüdung glasfaserverstärkter Kunststoffe bei sehr großen Lastspielzahlen: Herausforderungen, Strategien und Methoden.
Composites United Arbeitsgruppensitzung, AG Strukturelle Integrität und UAG Composite Fatigue, Web-Konferenz, 20. Nov. (2020).

 

List of all presentations

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