This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Fatigue Behavior of Large Cast Components under Variable Amplitude Loading with Overloads
Technical Paper
2019-01-0526
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
To reduce the weight and to increase the power as well as to enable the utilization of nodular cast iron components, e.g. for wind turbines and heavy industry parts, locally higher stresses need to be withstood by the material. This becomes crucial, when additional overloads influence the structure of thick-walled components causing high local elastic-plastic deformations. In this case, the cyclic, elastic-plastic material behavior and its development under cyclic loading are important points to be considered during component design. To assess the material’s local elastic-plastic material behavior, strain-controlled fatigue tests were performed under alternating loading, Rε = -1, with unnotched specimens removed from cast blocks as well as from a hub and a planet carrier of wind turbines, made of EN-GJS-400-18U-LT, EN-GJS-700-2, ADI-800 and ADI-900. To determine the influence of constant and variable amplitude loading on the elastic-plastic material behavior, fatigue tests were performed based on constant amplitude as well as on variable amplitude loading. For the fatigue tests under variable amplitude loading, two real load-time histories, which were derived from a measured load-time series from the base frame of the nacelle and the hub of a wind turbine, were used. In order to analyze the influence of an additional overload during usage, additional test series with maximum overloads of 0.5 and 1.0 % under pressure loading were embedded in the load sequence and the results compared to those without overload.
Recommended Content
Authors
Topic
Citation
Bleicher, C., Wagener, R., and Kaufmann, H., "Fatigue Behavior of Large Cast Components under Variable Amplitude Loading with Overloads," SAE Technical Paper 2019-01-0526, 2019, https://doi.org/10.4271/2019-01-0526.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 | ||
| Unnamed Dataset 5 |
Also In
References
- DNV GL Sept. 2016 27
- 2014
- DIN EN 1563 2012
- DIN EN 1564 2012
- Kuguel , R. A Relation between Theoretical Stress Concentration Factor and Fatigue Notch Factor Deduced from the Concept of Highly Stressed Volume ASTM Proceedings 1961
- Sept. 2010
- SEP1240 STAHL-EISEN-Prüfblätter 2006
- Ramberg , W. and Osgood , W.R. 1943
- Wagener , R.W. 2007
- Basquin , O.H. The Exponential Law of Endurance Tests Materials Proceedings 10 625 630 1910
- Coffin , L.A. A Study of the Effects of Cyclic Thermal Stresses on a Ductile Metal Trans. ASME 76 931 950 1954
- Manson , S.S. Fatigue: A Complex Subject - Some Simple Approximations Experimental Mechanics 5 7 45 87 1965
- Morrow , J.D. 1965 45 87
- Bleicher , C. 2016 978-3-8396-1048-0
- Sonsino , C.M. Course of SN-Curves Especially in the High-Cycle Fatigue Regime with Regard to Component Design and Safety International Journal of Fatigue 29 2246 2258 2007
- Bleicher , C. Influence of Different Load Histories on the Cyclic Material Behavior of Nodular Cast Iron for Thick-Walled Application International Journal of Offshore and Polar Engineering 28 3 294 302 Sept. 2018
- 2016
- Spindel , J.E. and Haibach , E. The Method of Maximum Likelihood Applied to the Statistical Analysis of Fatigue Data Including Run-Outs S.E.E. International Conference University of Warwick, Coventry Apr. 3-6 1979 7.1 7.23
- Haibach , E. Betriebsfestigkeit Berlin Springer-Verlag 2006 3-540-29363-9