Alexander Schowtjak M.Sc.
Baroper Str. 303
MB ||| / Raum 4.017
Campus Süd
44227 Dortmund

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+49 231 755 8476

Key activities

Damage mechanics

Parameter identification

Process simulation


Model Integration for Process Simulation



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.
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.
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.
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.
Tekkaya, A. E., Traphöner, H., Hering, O., Kolpak, F., Gutknecht, F., Schowtjak, A., 2019. Über die klassische Werkstoffprüfung hinaus – Werkstoffeigenschaften für die moderne Umformtechnik. In: DGM dIALOG – Materialwissenschaften und Werkstofftechnik – Werkstoffprüfung 2, pp. 26-31.
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.

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.

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.