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Short crack growth based procedures to assess fatigue life of components subjected to thermal cyclic loading.

Warmuth, Teresa ; Bauerbach, Kai ; Vormwald, Michael ; Rudolph, Jürgen (2010)
Short crack growth based procedures to assess fatigue life of components subjected to thermal cyclic loading.
18th European Conference on Fracture ECF18. Dresden (2010)
Conference or Workshop Item, Bibliographie

Abstract

The results of three different fatigue lifetime assessment procedures are compared for the study case of a thick-walled pipe made of stainless austenitic steel (German stabilized austenite 1.4550) and subjected to thermal cyclic loading. In detail, calculated fatigue lifetime according to the damage parameters D_TMF [1] and P_J [2] on one hand and code conforming fatigue analysis using ASME Section III, Division 1, NB 3000 [3] on the other hand are contrasted. Herein, the damage parameter D_TMF is a generalization of the D_CF parameter according to Riedel. It is a measure of the damaging effect of an arbitrary non-isothermal loading cycle. Like the damage parameter P_J it uses an approximation formula for the determination of the effective cyclic J-integral. D_TMF and P_J are used to describe the fatigue process in terms of short crack growth.

Item Type: Conference or Workshop Item
Erschienen: 2010
Creators: Warmuth, Teresa ; Bauerbach, Kai ; Vormwald, Michael ; Rudolph, Jürgen
Type of entry: Bibliographie
Title: Short crack growth based procedures to assess fatigue life of components subjected to thermal cyclic loading.
Language: English
Date: 2010
Place of Publication: Dresden
Journal or Publication Title: Proceedings of the 18th European Conference on Fracture ECF18, Dresden, 2010
Book Title: Proceedings of the 18th European Conference on Fracture ECF18
Event Title: 18th European Conference on Fracture ECF18
Event Location: Dresden
Event Dates: 2010
Abstract:

The results of three different fatigue lifetime assessment procedures are compared for the study case of a thick-walled pipe made of stainless austenitic steel (German stabilized austenite 1.4550) and subjected to thermal cyclic loading. In detail, calculated fatigue lifetime according to the damage parameters D_TMF [1] and P_J [2] on one hand and code conforming fatigue analysis using ASME Section III, Division 1, NB 3000 [3] on the other hand are contrasted. Herein, the damage parameter D_TMF is a generalization of the D_CF parameter according to Riedel. It is a measure of the damaging effect of an arbitrary non-isothermal loading cycle. Like the damage parameter P_J it uses an approximation formula for the determination of the effective cyclic J-integral. D_TMF and P_J are used to describe the fatigue process in terms of short crack growth.

Uncontrolled Keywords: thermal cyclic loading, damage parameters, fatigue lifetime assessment, short crack based approaches, lifetime and ageing management
Divisions: 13 Department of Civil and Environmental Engineering Sciences > Institute of Steel Constructions and Material Mechanics > Fachgebiet Werkstoffmechanik
13 Department of Civil and Environmental Engineering Sciences > Institute of Steel Constructions and Material Mechanics
13 Department of Civil and Environmental Engineering Sciences
Date Deposited: 08 Jul 2014 14:38
Last Modified: 06 Feb 2015 11:12
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