Schlitzer, Teresa ; Bauerbach, Kai ; Beier, Heinz Thomas ; Fischaleck, Manuel ; Langschwager, Kay ; Oechsner, Matthias ; Rudolph, Jürgen ; Scholz, Alfred ; Vormwald, Michael ; Willuweit, Adrian (2014):
Numerical simulation and experimental characterisation of fatigue crack growth under thermocyclic loading.
In: Proceedings of the 4th Symposium on Structural Durability in Darmstadt, SoSDiD; May 14th-15th, 2014, Darmstadt, Germany; MARITIM Konferenzhotel. Editors: J. Baumgartner, T. Melz., pp. 147-164, Stuttgart, Fraunhofer Verl., ISBN 978-3-8396-0734-3,
[Book Section]
Abstract
The fatigue behavior of the austenitic stainless steel X6CrNiNb18-10 (1.4550, AISI 347) is investigated. Experimental data are generated at room temperature, at elevated temperatures and further under thermo-mechanical conditions. Research is focused on generating data for parameter identification, especially for the improvement of material models. The influence of temperature on the stress-strain behavior and the fatigue life is presented. Finite element simulations are used to describe fatigue crack growth under thermo-cyclic loading conditions. Using the example of a thick-walled tube, the essential parameter for the crack growth rate—the effective cyclic J-integral—is determined for eight temperature transients (defined by fluid temperature, heat transfer coefficient and inner pressure). An approximation of the effective cyclic J-integral allows modeling without consideration of the crack geometry in the model.
| Item Type: | Book Section |
|---|---|
| Erschienen: | 2014 |
| Creators: | Schlitzer, Teresa ; Bauerbach, Kai ; Beier, Heinz Thomas ; Fischaleck, Manuel ; Langschwager, Kay ; Oechsner, Matthias ; Rudolph, Jürgen ; Scholz, Alfred ; Vormwald, Michael ; Willuweit, Adrian |
| Title: | Numerical simulation and experimental characterisation of fatigue crack growth under thermocyclic loading |
| Language: | English |
| Abstract: | The fatigue behavior of the austenitic stainless steel X6CrNiNb18-10 (1.4550, AISI 347) is investigated. Experimental data are generated at room temperature, at elevated temperatures and further under thermo-mechanical conditions. Research is focused on generating data for parameter identification, especially for the improvement of material models. The influence of temperature on the stress-strain behavior and the fatigue life is presented. Finite element simulations are used to describe fatigue crack growth under thermo-cyclic loading conditions. Using the example of a thick-walled tube, the essential parameter for the crack growth rate—the effective cyclic J-integral—is determined for eight temperature transients (defined by fluid temperature, heat transfer coefficient and inner pressure). An approximation of the effective cyclic J-integral allows modeling without consideration of the crack geometry in the model. |
| Book Title: | Proceedings of the 4th Symposium on Structural Durability in Darmstadt, SoSDiD; May 14th-15th, 2014, Darmstadt, Germany; MARITIM Konferenzhotel. Editors: J. Baumgartner, T. Melz. |
| Place of Publication: | Stuttgart |
| Publisher: | Fraunhofer Verl. |
| ISBN: | 978-3-8396-0734-3 |
| Divisions: | 13 Department of Civil and Environmental Engineering Sciences 13 Department of Civil and Environmental Engineering Sciences > Institute of Steel Constructions and Material Mechanics 13 Department of Civil and Environmental Engineering Sciences > Institute of Steel Constructions and Material Mechanics > Fachgebiet Werkstoffmechanik 16 Department of Mechanical Engineering > Center for Engineering Materials, State Materials Testing Institute Darmstadt (MPA) Chair and Institute for Materials Technology (IfW) 16 Department of Mechanical Engineering |
| Event Title: | 4th Symposium on Structural Durability in Darmstadt |
| Date Deposited: | 15 Jul 2014 14:10 |
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