Dr.-Ing. Till Clausmeyer
Chief Engineer research

Baroper Str. 303
MB III / Raum 4.018
Campus Süd
44227 Dortmund
Germany

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+49 231 755 8429

Key activities

Applied mechanic

Coordination of research activities

Process simulation

Material characterization

Material modeling

 

Projects

Shape Prediction and Improvement for Expansion of Non-Round Tubes

Micromechanical Modeling of Material Forming for the Prediction of Anisotropic Hardening (completed)

 

Publications

2020
Clausmeyer, T., Gutknecht, F., Gerstein, G., Nürnberger, F., 2020. Testing of formed gear wheels at quasi-static and elevated strain rates. Procedia Manufacturing 47, pp. 623-628.
Clausmeyer, T., Schowtjak, A., Gitschel, R., Wang, S., Hering, O., Pavliuchenko, P., Lohmar, J., Ostwald, R., Hirt, G., Tekkaya, A. E., 2020. Prediction of Ductile Damage in the Process Chain of Caliber Rolling and Forward Rod Extrusion. Procedia Manufacturing 47, pp. 649-655.

Gutknecht, F., Gerstein, G., Isik, K., Tekkaya, A. E., Maier, H. J., Clausmeyer, T., Nürnberger, F., 2020. Analysis of Path-Dependent Damage and Microstructure Evolution for Numerical Analysis of Sheet-Bulk Metal Forming Processes. In: Merklein, M., Tekkaya, A. E., Behrens, B.-A. (Eds.): Lecture Notes in Production Engineering. Research Results of the TCRC73. Sheet-Bulk Metal Forming, Springer, pp. 378-411.

Hirt, G., Tekkaya, A. E., Clausmeyer, T., Lohmar, J., 2020. Potential and status of damage controlled forming processes. Production Engineering 14, DOI: 10.1007/s11740-019-00948-6.
Langenfeld, K., Schowtjak, A., Schulte, R., Hering, O., Möhring, K., Clausmeyer, T., Ostwald, R., Walther, F., Tekkaya, A. E., Mosler, J., 2020. Influence of anisotropic damage evolution on cold forging. Production Engineering 14 (1), pp. 115–121.
Schmitz, F., Winter, S., Clausmeyer, T., Wagner, M. F.-X., Tekkaya, A. E., 2020. Adiabatic blanking of advanced high strength steels. CIRP Annals Manufacturing Technology 69 (1), pp. 269–272.
Schowtjak, A., Wang, S., Hering, O., Clausmeyer, T., Lohmar, J., Schulte, R., Ostwald, R., Hirt, G., Tekkaya, A. E., 2020. Prediction and analysis of damage evolution during caliber rolling and subsequent cold forward extrusion. Production Engineering 14 (1), pp. 33-41.
Sprave, L., Schowtjak, A., Meya, R., Clausmeyer, T., Tekkaya, A. E., Menzel, A., 2020. On mesh dependencies in finite-element based damage prediction: application to sheet metal bending. Production Engineering 14 (1), pp. 123-134.
Zhang, C., Wang, Y., Chen, Z., Yang, N., Lou, Y., Clausmeyer, T., Tekkaya, A. E., 2020. Characterization of plasticity and fracture of an QP1180 steel sheet. Procedia Manufacturing 50, pp. 529-534.
2019
Clausmeyer, T., Nürnberger, F., Gutknecht, F., Isik, K., Besserer, H., Gerstein, G., Wernicke, S., Schulte, R., Tekkaya, A. E., Merklein, M., Maier, H., 2019. Analyse und Modellierung von Schädigung und Versagen in der Blechmassivumformung. 4. Workshop Blechmassivumformung, Erlangen, Germany, pp. 33-60.
Gutknecht, F., Clausmeyer, T., 2019. Analysis of strain-path change indicator for application in sheet-bulk metal forming. In: Proceedings of 12th Forming Technology Forum, 19.-20.09.2019, Herrsching am Ammersee, Germany, (Digital).
Gutknecht, F., Vogel, M., Schulte, R., Merklein, M., Rosenbusch, D., Koch, S., Hübner, S., Behrens, B., Tekkaya, A. E., Clausmeyer, T., 2019. Comparison of strain-path indicators for analysis of processes in sheet-bulk metal forming. In: Proceedings of NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes, New Hampshire, USA, pp. 123-126.
Hou, Y., Min, J., Guo, N., Lin, J., Carsleyb, J. E., Stoughton, T. B., Traphöner, H., Clausmeyer, T., Tekkaya, A. E., 2019. Investigation of evolving yield surfaces of dual-phase steels. Journal of Materials Processing Technology, DOI: 10.1016/j.jmatprotec.2019.116314.
Münstermann, S., Sparrer, Y., Yao, Y., Lian, J., Meya, R., Clausmeyer, T., Tekkaya, A. E., 2019. Effect of plastic strain and ductile damage on elastic modulus of multiphase steel and its impact on springback prediction. In: AIP Conference Proceedings 2113, Proceedings of the 22nd International ESAFORM Conference on Material Forming, Vitoria-Gasteiz, Spain, DOI: 10.1063/1.5112739.
Schowtjak, A., Kusche, C., Meya, R., Al-Samman, T., Korte-Kerzel, S., Tekkaya, A. E., Clausmeyer, T., 2019. Prediction of void evolution in sheet bending based on statistically representative microstructural data for the Gurson-Tvergaard-Needleman model. In: Proceedings of NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes, New Hampshire, USA, pp. 311-314.
2018
Gerstein, G., Briukhanov, A., Gutknecht, F., Volchok, N., Clausmeyer, T., Nürnberger, F., Tekkaya, A. E., Maier, H. J., 2018.Evaluation of Micro-Damage by Acoustic Methods. In: Procedia Manufacturing 15 (17th International Conference on Metal Forming), Toyohashi, Japan, pp. 527-534.
Gutknecht, F., Gerstein, G., Traphöner, H., Clausmeyer, T., Nürnberger, F., 2018.Experimental Setup to Characterize Flow-Induced Anisotropy of Sheet Metals. In: Proceedings of the 37th International Deep-Drawing Research Group Conference, Waterloo, Canada, DOI: 10.1088/1757-899X/418/1/012085.

Heibel, S., Dettinger, T., Nester, W., Clausmeyer, T., Tekkaya, A. E., 2018.Damage Mechanisms and Mechanical Properties of High-Strength Multiphase Steels. Materials 5 (11), DOI: 10.3390/ma11050761.

Isik, K., Yoshida, Y., Chen, L., Clausmeyer, T., Tekkaya, A. E., 2018.Modelling of the Blanking Process of High-Carbon Steel Using Lemaitre Damage Model. Comptes Rendus Mécanique 8 (346), pp. 770-778.
Levin, E., Larour, P., Heuse, M., Staupendahl, D., Clausmeyer, T., Tekkaya, A. E., 2018.Influence of Cutting Tool Stiffness on Edge Formability. In: Proceedings of the 37th International Deep-Drawing Research Group Conference, Waterloo, Canada, DOI: 10.1088/1757-899X/418/1/012061.
Tekkaya, A. E., Schowtjak, A., Clausmeyer, T., 2018. Damage in Metal Forming. 8th JSTP International Seminar on Precision Forging. 05.-08.03.2018, Nagoya, Japan, pp. 21-26.

Traphöner, H., Clausmeyer, T., Tekkaya, A. E., 2018. Material Characterization for Plane and Curved Sheets Using the In-Plane Torsion Test – An Overview. Journal of Materials Processing Technology 257, pp. 278-287.

Traphöner, H., Heibel, S., Clausmeyer, T., Tekkaya, A. E., 2018. Influence of Manufacturing Processes on Material Characterization with the Grooved In-Plane Torsion Test. International Journal of Mechanical Sciences 146, pp. 544-555.

 

2017
Tekkaya, A. E., Traphöner, H., Clausmeyer, T., 2017. In-plane Torsion Testing of Sheet Metal. IDDRG, 02.-06.07.2017, Munich, Germany.
Tekkaya, A. E., Traphöner, H., Clausmeyer, T., 2017. Sheet Metal Characterization with the In-plane Torsion Test. CEMEF, 03.05.2017, Sophia Antipolis, France.
Schowtjak, A., Clausmeyer, T., Tekkaya, A. E., 2017. Identification of Model Parameters of Fracture Criteria and Damage Models for Application in Cold Extrusion. Sitzung der DVM-Arbeitsgruppe Simulation 2017, 27.10.2017, Munich, Germany.
Winter, S., Schmitz, F., Clausmeyer, T., Tekkaya, A. E., Wagner, M. F.-X., 2017. High temperature and dynamic testing of AHSS for an analytical description of the adiabatic cutting process. In: IOP Conference Series: Materials Science and Engineering 181, 19 th Chemnitz Seminar on Materials Engineering, Chemnitz, Germany, DOI: 10.1088/1757-899X/181/1/012026.
Traphöner, H., Clausmeyer, T., Tekkaya, A. E., 2017. Material characterization for plane and curved sheets using the in-plane torsion test – an overview. In: Procedia Engineering 207: 12 th International Conference on Technology of Plasticity, Cambridge, United Kingdom, pp.1934-1939.
Sumikawa, S., Ishiwatari, A., Hiramoto, J., Yoshida, F., Clausmeyer, T., Tekkaya, A. E., 2017. Stress state dependency of unloading behavior in high strength steels. In: Procedia Engineering 207: 12 th International Conference on Technology of Plasticity, Cambridge, United Kingdom, pp. 179-184.
Schowtjak, A., Clausmeyer, T., Tekkaya, A. E., 2017. Analysis of Damage and Fracture formulations in Cold Extrusion. In: Proceedings of the XIV International Conference on Computational Plasticity – Fundamentals and Applications COMPLAS 2017, Barcelona, Spain, pp. 196-207.
Heibel, S., Nester, W., Clausmeyer, T., Tekkaya, A. E., 2017. Failure assessment in sheet metal forming using a phenomenologi- cal damage model and fracture criterion: experiments, parameter identification and validation. In: Procedia Engineering 207: 12 th International Conference on Technology of Plasticity, Cambridge, United Kingdom, pp. 2066-2071.
Gutknecht, F., Isik, K., Clausmeyer, T., Tekkaya, A. E., Gerstein, G., Nürnberger, F., 2017. Vorhersage von Schädigung in der Blechmassivumformung. In: 22. Umformtechnisches Kolloquium, Hannover, Germany, p. 220, (Poster).
Gutknecht, F., Isik, K., Clausmeyer, T., Tekkaya, A. E., 2017. Comparison of Gurson and Lemaitre model in the context of blanking simulation of a high strength steel. In: Proceedings of the XIV International Conference on Computational Plasticity – Fundamentals and Applications COMPLAS 2017, Barcelona, Spain, pp. 163-173.
Gerstein, G., Isik, K., Gutknecht, F., Sieczkarek, P., Ewert, J., Tekkaya, A. E., Clausmeyer, T., Nürnberger, F., 2017. Microstructural characterization and simulation of damage for geared sheet components. In: Journal of Physics: Conference Series 896, 36th IDDRG Conference - Materials Modelling and Testing for Sheet Metal Forming, Munich, Germany, DOI:10.1088/1742-6596/896/1/012076.
Gerstein, G., Clausmeyer, T., Gutknecht, F., Tekkaya, A. E., Nürnberger, F., 2017. Analysis of Dislocation Structures in Ferritic and Dual Phase Steels Regarding Continuous and Discontinuous Loading Paths. In: TMS 2017, 146th Annual Meeting & Exhibition Supplemental Proceedings, San Diego, USA, pp. 203-210.
Doig, M., Isik, K., Clausmeyer, T., Richter, H., Heibel, S., Tekkaya, A. E., 2017. Material characterization and parameter optimization for a damage model. In: SCT 2017 Proceedings, Amsterdam, The Netherlands, (Digital).
Doig, M., Isik, K., Clausmeyer, T., Heibel, S., Richter, H., Tekkaya, A. E., 2017. Material Characterization and Validation Studies for Modeling Ductile Damage during Deep Drawing. In: Proceedings of the 17th International Conference on Sheet Metal, Palermo, Italy, pp. 77-82.
Lou, Y., Chen, L., Clausmeyer, T., Tekkaya, A. E., Yoon, J. W., 2017. Modeling of ductile fracture from shear to balanced biaxial tension for sheet metals. International Journal of Solids and Structures 122, pp. 169-184.
Gerstein, G., Isik, K., Gutknecht, F., Sieczkarek, P., Ewert, J., Tekkaya, A. E., Clausmeyer, T., Nürnberger, F., 2017. Microstructural characterization and simulation of damage for geared sheet components.IDDRG, 02.-06.07.2017, München, Germany.
Gutknecht, F., Isik, K., Clausmeyer, T., Tekkaya, A. E., Gerstein, G., Nürnberger, F., 2017. Vorhersage von Schädigung in der Blechmassivumformung. 22. Umformtechnisches Kolloquium, 15.-16.03.2017, Hannover, Germany.
Heibel, S., Nester, W., Clausmeyer, T., Tekkaya, A. E., 2017. Influence of different Yield Loci on Failure Prediction with Damage Models. IDDRG, 02.-06.07.2017, München, Germany.
Hijazi, D., Traphöner, H., Staupendahl, D., Clausmeyer, T., Tekkaya, A. E., 2017. Characterization of planar anisotropy, hardening and fracture of tubular materials by a modified in-plane torsion test. SCT 2017, 18.-22.06.2017, Amsterdam, Niederlande.
Schmitz, F., Winter, S., Clausmeyer, T., Even, D., Colasse, C., Tekkaya, A. E., Wagner, M. F., 2017. Materials science-based simulation strategies for the adiabatic cutting process. SCT 2017, June 18-22, Amsterdam, Niederlande.
2016
Clausmeyer, T., Heibel, S., Nester, W., Tekkaya, A. E., 2016. Damage characterization of high-strength multiphase steels. IDDRG 2016, 12.-15.06.2016, Linz, Austria, pp. 10-17.
Gebhard, J., El Budamusi, M., Becker, C., Chen, L., Clausmeyer, T., Tekkaya, A. E., 2016. Enhancement of forming limits in bending with a combined strategy. 66th Japanese Joint Conference for the Technology of Plasticity, pp. 195-196.
Gerstein, G., Clausmeyer, T., Isik, K., Nürnberger, F., Tekkaya, A. E., Bruchanov, A. A., Maier H. J., 2016. Experimental analysis of anisotropic damage in dual phase steel by resonance measurement. International Journal of Damage Mechanics, DOI: 10.1177/1056789516650245.
Gutknecht, F., Steinbach, F., Hammer, T., Clausmeyer, T., Volk, W., Tekkaya, A. E., 2016. Analysis of shear cutting of dual phase steel by application of an advanced damage model. Procedia Structural Integrity 2, pp. 1700-1707.
Gutknecht, F., Übelacker, D., Clausmeyer, T., Tekkaya, A. E., 2016. Numerical investigation of blanking metal polymer sandwich sheets. NUMIFORM 2016, 04.-07.07.2016, Troyes, France.
Isik, K.; Gerstein, G., Clausmeyer, T., Gutknecht, F., Nürnberger, F., Tekkaya, A. E., Maier, H. J., 2016. Investigations of ductile damage in DP600 and DC04 deep drawing steel sheets during punching, Structural Integrity Procedia 2, pp. 673-680.
Isik, K., Gerstein, G., Clausmeyer, T., Nürnberger, F., Tekkaya, A. E., Maier, H. J., 2016. Evaluation of Void Nucleation and Development during Plastic Deformation of Dual-Phase Steel DP600. Steel Research International, DOI: 10.1002/srin.201500483.
Isik, K., Gerstein, G., Schneider, T., Schulte, R., Rosenbusch, D., Clausmeyer, T., Nürnberger, F., Vucetic, M., Koch, S., Hübner, S., Behrens, B.-A., Tekkaya, A. E., Merklein, M., 2016. Investigations of ductile damage during the process chains of toothed functional components manufactured by sheet-bulk metal forming, Production Engineering 10, pp. 5-15.
Tekkaya, A. E., El Budamusi, M., Becker, C., Clausmeyer, T., Chen, L., Gebhard, J., 2016. Erweiterung der Formänderungsgrenzen von höherfesten Stahlwerkstoffen bei Biegeumformprozessen durch innovative Prozessführung und Werkzeuge. Abschlussbericht, Forschung für die Praxis.
2015
Chen, L., Clausmeyer, T., Tekkaya, A. E., 2015. Experimental characterization and numerical modelling of the mechanical behavior of half sandwich laminate in the context of blanking, Computer Methods in Materials Science – Special Issue Komplastech 2015 15, pp. 162-168.
Clausmeyer, T., Svendsen, B., 2015. Comparison of two models for anisotropic hardening and yield surfaceevolution in bcc sheet steels. European Journal of Mechanics A/Solids 54, pp. 120-131.
El Budamusi, M., Isik, K., Chen, L., Clausmeyer, T., Becker, C., Tekkaya, A. E., Doig, M., 2015. Enhanced Damage Modelling for Sheet Metal Forming of High Strength Steels – Part 2: Application to forming processes. 2nd European Steel Technology and Application Days, Düsseldorf, Germany, (CD).
Gutknecht, F., Steinbach, F., Clausmeyer, T., Tekkaya, A. E., 2015. Advanced material model for shear cutting of metal sheets. In: Proceedings of COMPLAS XIII, Barcelona, Spain, pp. 170-181.
Isik, K., Chen, L., El Budamusi, M., Clausmeyer, T., Becker, C., Tekkaya, A. E., Doig, M., 2015. Enhanced Damage Modelling for Sheet Metal Forming of High Strength Steels - Part 1: Material model, experimental characterization and identification. 2nd European Steel Technology and Application Days, Düsseldorf, Germany, (CD).
Isik, K., Doig, M., Richter, H., Clausmeyer, T., Tekkaya, A. E., 2015. Enhancement of Lemaitre Model to Predict Cracks at Low and Negative Triaxialities in Sheet Metal Forming. Key Engineering Materials Special Issue SheMet 2015 639, pp. 427-434.
2014
Clausmeyer, T., Güner, A., Tekkaya, A. E., Levkovitch, T., Svendsen, B., 2014. Modeling and finite element simulation of loading-path-dependent hardening in sheet metals during forming. International Journal of Plasticity 63, pp. 64-93.