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New Investigations on Very High Cycle Fatigue of Materials

Organized by

Herwig Mayer and Stefanie Stanzl-Tschegg

Description:

Several load-bearing components are stressed with very high numbers of load cycles during service. Engine components, railway wheels and several other components in transportation industry, offshore structures, medical devices etc. have to endure extremely high numbers of cycles, in the order of one billion. Failure at very long lifetimes have been detected even in ferrous alloys, which have been previously assumed to have a fatigue limit, and save design requires the knowledge of material behaviour within this regime. Progress has been made in understanding the mechanisms causing fatigue failure at very high numbers of cycles, i.e. crack initiation mechanisms and the influence of small material defects, development of testing techniques, the prediction of fatigue lifetimes and environmental influences on cyclic strength. The session serves to present new experimental and theoretical investigations in the field of very high cycle fatigue.

Chair: Herwig Mayer
BOKU, Institute of Physics and Material Science
Peter-Jordan-Str. 82, A-1190 Vienna, Austria
Phone: (+43 1) 47654 5161, Fax: (+43 1) 47654 5159, E-mail: herwig.mayer@boku.ac.at

Co-chair: Stefanie Stanzl-Tschegg
BOKU, Institute of Physics and Material Science
Peter-Jordan-Str. 82, A-1190 Vienna, Austria
Phone: (+43 1) 47654 5160, Fax: (+43 1) 47654 5159, E-mail: herwig.mayer@boku.ac.at

Papers

1. The effect of hydrogen on high cycle fatigue properties of high strength steels

Corresponding Author: Yukitaka Murakami

Dept. of Mechanical Engineering Science, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581 Japan

Phone: 092-642-3380, FAX: 092-641-9744, E-mail: ymura@mech.kyushu-u.ac.jp

2. Microstructural aspects of very long life fatigue of structural materials

Corresponding author: J. Wayne Jones

Department of Materials Science and Engineering, University of Michigan, 2300 Hayward Street, Ann Arbor, MI 48109-2136, USA

Phone: 734-764-7503, FAX: 734 615 5168, E-mail: jonesjwa@umich.edu

Co-authors: John E. Allison, Ford Motor Company USA and Tresa M. Pollock, University of Michigan, USA

3. Crack Initiation Mechanism of Bearing Steel in Interior Inclusion-induced Fracture in Very High Cycle Fatigue Regime.

Corresponding Author: Tatsuo Sakai

Department of Mechanical Engineering, College of Science and Engineering, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga, 525-8577 Japan

Phone: +81 77 5612745, FAX: +81 77 5612665, E-mail: sakai@se.ritsumei.ac.jp

Co-authors: Hisashi Harada, Koyo Seiko Co., Ltd., Japan, Noriyasu Oguma, Koyo Seiko Co., Ltd., Japan

4. Does copper undergo surface roughening during fatigue in the VHC regime?

Corresponding Author: Stefanie Stanzl-Tschegg

Co-authors: Hael Mughrabi, Institut fuer Werkstoffwissenschaften, Universitaet Erlangen-Nuernberg, Martensstrasse 5, D-91058 Erlangen, Germany

Reinhard Schuller, Institute of Physics and Materials Science, BOKU, University of Natural Resources and Applied Life Sciences, Peter-Jordan-Strasse 82, A-1190 Vienna, Austria

5. Very high cycle fatigue behavior of high strength steel

Corresponding Author: Yoshiaki Akiniwa

Mechanical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603 Japan

Phone: +81527894673, FAX:+81527893109,

E-mail: akiniwa@mech.nagoya-u.ac.jp

Co-authors: Hirotaka Tsuru, Mechanical Engineering, Nagoya University, Japan

Keisuke Tanaka, Mechanical Engineering, Nagoya University, Japan

6. Very high cycle fatigue behaviour under cyclic torsion loading.

Herwig Mayer and Stefanie Stanzl-Tschegg

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