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

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

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 and Bauerbach, Kai and Vormwald, Michael and Rudolph, Jürgen
Title: Short crack growth based procedures to assess fatigue life of components subjected to thermal cyclic loading.
Language: English
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.

Journal or Publication Title: Proceedings of the 18th European Conference on Fracture ECF18, Dresden, 2010
Title of Book: Proceedings of the 18th European Conference on Fracture ECF18
Place of Publication: Dresden
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
Event Title: 18th European Conference on Fracture ECF18
Event Location: Dresden
Event Dates: 2010
Date Deposited: 08 Jul 2014 14:38
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