For the reliable operation of bellows under cyclic loadings at high temperatures, a rational evaluation method of life of bellows would be needed. Authors investigated simplified analysis methods for fatigue and creep-fatigue life prediction of U-shaped bellows considering inelasticity as well as various geometrical nonuniformity such as thickness and shape of convolutions. A conservative evaluation method of the strain range is developed, introducing three strain range amplification factors for nominal elastic strain range. Creep and relaxation behaviors of bellows are studied. Consequently, a new evaluation method of creep damage fractions is proposed which depends upon the relation between primary and secondary stresses. Fatigue and creep-fatigue tests are conducted and the validity of the present methods is discussed.
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August 1992
Research Papers
Fatigue and Creep-Fatigue Life Evaluation of U-Shaped Bellows
K. Tsukimori,
K. Tsukimori
O-arai Engineering Center, Power Reactor and Nuclear Fuel Development Corporation, Ibaraki-ken, Japan
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T. Yamashita,
T. Yamashita
O-arai Engineering Center, Power Reactor and Nuclear Fuel Development Corporation, Ibaraki-ken, Japan
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M. Kikuchi,
M. Kikuchi
O-arai Engineering Center, Power Reactor and Nuclear Fuel Development Corporation, Ibaraki-ken, Japan
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K. Iwata,
K. Iwata
O-arai Engineering Center, Power Reactor and Nuclear Fuel Development Corporation, Ibaraki-ken, Japan
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A. Imazu
A. Imazu
O-arai Engineering Center, Power Reactor and Nuclear Fuel Development Corporation, Ibaraki-ken, Japan
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K. Tsukimori
O-arai Engineering Center, Power Reactor and Nuclear Fuel Development Corporation, Ibaraki-ken, Japan
T. Yamashita
O-arai Engineering Center, Power Reactor and Nuclear Fuel Development Corporation, Ibaraki-ken, Japan
M. Kikuchi
O-arai Engineering Center, Power Reactor and Nuclear Fuel Development Corporation, Ibaraki-ken, Japan
K. Iwata
O-arai Engineering Center, Power Reactor and Nuclear Fuel Development Corporation, Ibaraki-ken, Japan
A. Imazu
O-arai Engineering Center, Power Reactor and Nuclear Fuel Development Corporation, Ibaraki-ken, Japan
J. Pressure Vessel Technol. Aug 1992, 114(3): 280-291 (12 pages)
Published Online: August 1, 1992
Article history
Received:
May 21, 1991
Revised:
February 26, 1992
Online:
June 17, 2008
Connected Content
A companion article has been published:
Formation of Lubricant Film in Rotary Sealing Contacts: Part II—A New Measuring Principle for Lubricant Film Thickness
Citation
Tsukimori, K., Yamashita, T., Kikuchi, M., Iwata, K., and Imazu, A. (August 1, 1992). "Fatigue and Creep-Fatigue Life Evaluation of U-Shaped Bellows." ASME. J. Pressure Vessel Technol. August 1992; 114(3): 280–291. https://doi.org/10.1115/1.2929042
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