TU Darmstadt / ULB / TUbiblio

Numerical simulation and experimental characterisation of fatigue crack growth under thermocyclic loading

Schlitzer, Teresa and Bauerbach, Kai and Beier, Heinz Thomas and Fischaleck, Manuel and Langschwager, Kay and Oechsner, Matthias and Rudolph, Jürgen and Scholz, Alfred and Vormwald, Michael and 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., Stuttgart, Fraunhofer Verl., pp. 147-164, [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 and Bauerbach, Kai and Beier, Heinz Thomas and Fischaleck, Manuel and Langschwager, Kay and Oechsner, Matthias and Rudolph, Jürgen and Scholz, Alfred and Vormwald, Michael and 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.

Title of Book: 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
Export:

Optionen (nur für Redakteure)

View Item View Item