Low-cycle fatigue investigations and numerical simulations on nodular cast iron for wind turbine components

Čanžar, Predrag and Tonković, Zdenko and Drvar, Nenad and Bakić, Ante and Kodvanj, Janoš (2012) Low-cycle fatigue investigations and numerical simulations on nodular cast iron for wind turbine components. = Low-cycle fatigue investigations and numerical simulations on nodular cast iron for wind turbine components. In: 7th International Congress of Croatian Society of Mechanics, 22-25.05.2012., Zadar, Hrvatska.

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Abstract

Most of the components of modern wind turbines are made of ductile cast iron. Ferritic nodular cast iron grade EN−GJS−400−18−LT, in which graphite spheroids or nodules in a ferritic matrix provide large ductility and fatigue strength, is commonly used. In the last decade numerous experimental studies have been presented showing influence of microstructure on the mechanical behaviour of the nodular cast iron. However, there are only limited experimental data available on fatigue crack growth behaviour of EN-GJS-400-18-LT (e.g. Mottitschka et al., 2010) and still the effect of the graphite morphology (size, shape and distribution) as well as microstructure phase (ferritic and pearlitic) on fatigue properties of this material is not well documented (Čanžar et al., 2011). This paper presents an experimental and numerical study of the low-cycle fatigue behaviour of nodular cast iron EN−GJS−400−18−LT depending on the material microstructure.

Item Type: Conference or Workshop Item (Paper)
Keywords (Croatian): ductile cast iron, experiment, material microstructure, fatigue, crack, numerical study
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 200 Department of Engineering Mechanics
200 Department of Engineering Mechanics > 210 Chair of Mechanics and Strength of Materials
200 Department of Engineering Mechanics > 220 Chair of Experimental Mechanics
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 31 Mar 2016 10:13
Last Modified: 05 Apr 2016 14:30
URI: http://repozitorij.fsb.hr/id/eprint/5326

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