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Strip yield model application for thermal cyclic loading

Schlitzer, Teresa and Vormwald, Michael and Rudolph, Jürgen (2012):
Strip yield model application for thermal cyclic loading.
In: Computational Materials Science, pp. 265-269, 64, ISSN 09270256,
[Online-Edition: http://www.sciencedirect.com/science/article/pii/S0927025612...],
[Article]

Abstract

An extension of the strip yield model towards the calculation of crack opening and closure under non-isothermal loading conditions is the main prerequisite for its applicability in thermal fatigue analy- ses. The aim of this contribution is to implement a new proposal to this feature. Here, the yield stress is allowed to be location and time dependent. With this extension, the cyclic crack tip opening displacements, DCTOD, can be calculated. They are assumed to be related uniquely to the crack growth rate. The corresponding empirical relationship is derived from conventional isothermal fatigue crack growth behaviour of steels. Its integration leads to fatigue crack growth curves and lives.

Item Type: Article
Erschienen: 2012
Creators: Schlitzer, Teresa and Vormwald, Michael and Rudolph, Jürgen
Title: Strip yield model application for thermal cyclic loading
Language: English
Abstract:

An extension of the strip yield model towards the calculation of crack opening and closure under non-isothermal loading conditions is the main prerequisite for its applicability in thermal fatigue analy- ses. The aim of this contribution is to implement a new proposal to this feature. Here, the yield stress is allowed to be location and time dependent. With this extension, the cyclic crack tip opening displacements, DCTOD, can be calculated. They are assumed to be related uniquely to the crack growth rate. The corresponding empirical relationship is derived from conventional isothermal fatigue crack growth behaviour of steels. Its integration leads to fatigue crack growth curves and lives.

Journal or Publication Title: Computational Materials Science
Volume: 64
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
Official URL: http://www.sciencedirect.com/science/article/pii/S0927025612...
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