Heinrich Traphöner M. Sc.
Chief Engineer technology and finance

Baroper Str. 303
MB III / Raum 4.028
Campus Süd
44227 Dortmund

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+49 231 755 8439

Key activities

Human resources and budget planning

Material characterization

In-plane torsion test
Material characterization
Springback prediction


Novel In-Plane Torsion Specimen for the Characterization of Damage and Hardening

Analysis of Material-Specific and Geometric Influences on the Numerical Springback Prediction (completed)




Dardaei Joghan, H., Hahn, M., Traphöner, H., Tekkaya, A. E., 2019. Influence of the preheating strategy on the deep drawing of extruded magnesium alloy ME20 sheets. In: Proceedings of The 38th International Deep Drawing Research Group Annual Conference, Enschede, The Netherlands https://doi.org/10.1088/1757-899X/651/1/012067

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.
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.
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.
Tekkaya, A. E., Traphöner, H., Clausmeyer, T., 2017. Sheet Metal Characterization with the In-plane Torsion Test. CEMEF, 03.05.2017, Sophia Antipolis, France.
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., Merklein, M., Rosenschon, M., 2017. Identifikation spannungsabhängiger Bauschinger-Koeffizi- enten. EFB Kolloquium, 28.03.2017, Fellbach, 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.
Ul Hassan, H., Traphöner, H., Güner, A., Tekkaya, A. E., 2016. Accurate springback prediction in deep drawing using pre-strain based multiple cyclic stress–strain curves in finite element simulation. International Journal of Mechanical Sciences 110, pp. 229-241.
Yin, Q., Tekkaya, A. E., Traphöner, H., 2015. Determining cyclic flow curves using the in-plane torsion test. CIRP Annals - Manufacturing Technology 64, pp. 261-264.