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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/18093
Title: Fatigue of Clip Connectors for Offshore Drilling Risers under the Combined Influence of High Mean Stress and Biaxial Tension
Authors: Gaur V.
Doquet V.
Persent E.
Roguet E.
Lefebvre F.
Afzali M.
Published in: Proceedings of Procedia Engineering
Abstract: Push-pull fatigue tests at various R ratios (σmin/σmax), as well as combined cyclic tension and internal pressure tests with various proportions of each loading were run on a 2.5%Cr-1%Mo steel to investigate separately the effects of a mean stress and of positive stress biaxiality. Fatigue lives were found to decrease with increasing mean stress at fixed biaxiality and a non-linear effect of stress biaxiality on fatigue lives was observed at a fixed R ratio. The damage mechanisms were found to change with both parameters and these modifications were analyzed. Many popular multiaxial fatigue criteria were unable to describe all the data. Thus, a new fatigue criterion based on Gerber's parabola, has been proposed that captures the evolution of the endurance limit under the combined effect of mean stress and biaxial tension. © 2015 Published by Elsevier Ltd.
Citation: Proceedings of Procedia Engineering, (2015), 90- 101
URI: https://doi.org/10.1016/j.proeng.2015.12.631
http://repository.iitr.ac.in/handle/123456789/18093
Issue Date: 2015
Publisher: Elsevier Ltd
Keywords: biaxial tension
damage mechanisms
fatigue criteria
fish-eye
intergranular
internal crack initiation
ISSN: 18777058
Author Scopus IDs: 56229535200
6603630559
35198632700
56229926900
Author Affiliations: Gaur, V., LMS, Ecole Polytechnique, Université Paris-Saclay UMR CNRS 7649, Palaiseau, France, IFP Energies Nouvelles, 1 et 4 avenue de Bois-Préau, Rueil-Malmaison, 92852, France
Doquet, V., LMS, Ecole Polytechnique, Université Paris-Saclay UMR CNRS 7649, Palaiseau, France
Persent, E., IFP Energies Nouvelles, 1 et 4 avenue de Bois-Préau, Rueil-Malmaison, 92852, France
Roguet, E., IFP Energies Nouvelles, 1 et 4 avenue de Bois-Préau, Rueil-Malmaison, 92852, France
Corresponding Author: Gaur, V.; LMS, Ecole Polytechnique, Université Paris-Saclay UMR CNRS 7649France; email: gaur.vidit@gmail.com
Appears in Collections:Conference Publications [ME]

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