Abstract
One of the major aspects in light weight design for heat loaded components in industry are high performance thermo-mechanical fatigue (TMF) simulation with high accurate life time prediction One of the most advanced TMF life time model is physical motivated and was developed by Neu and Sehitoglu (1989). They also provide a method to calibrate the entire 21 parameters in a huge effort of investigation. In this publication an optimized test- and evaluation routine (unification of calibration) will be presented, which had been successfully applied and worked out over a wide range of technical metals, which leads to a high potential of evaluation automation. The test routine includes high temperature tensile tests, strain controlled low-cycle-fatigue tests under isothermal (LCF) and non-isothermal (TMF) conditions, and also metallographic investigations. Due to the standardized and optimized test procedure the effort of calibrating the model parameters reduces to minimum and enables straight forward material testing.
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Huter, P., Winter, G., Grün, F. (2013). Process Methodology of Parameter Finding with an Enhanced Lifetime Model Used for Thermo-Mechanical Fatigue. In: Jármai, K., Farkas, J. (eds) Design, Fabrication and Economy of Metal Structures. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-36691-8_38
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DOI: https://doi.org/10.1007/978-3-642-36691-8_38
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