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Journal ArticleDOI

Multiaxial fatigue life prediction of a high temperature steam turbine rotor using a critical plane approach

01 Oct 2000-Engineering Failure Analysis (Pergamon)-Vol. 7, Iss: 5, pp 347-358
TL;DR: In this paper, a computer-based procedure for multiaxial fatigue life assessment incorporating critical plane multi-xial damage models is presented and applied to correlate results from tests conducted on SAE 1045 steel notched shaft specimens.
About: This article is published in Engineering Failure Analysis.The article was published on 2000-10-01. It has received 28 citations till now. The article focuses on the topics: Vibration fatigue.
Citations
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Journal ArticleDOI
TL;DR: A review of multiaxial fatigue failure failure criteria based on the critical plane concept is presented in this paper, where the criteria have been divided into three groups according to the fatigue damage parameter used in the criterion, i.e. (i) stress, (ii) strain and (iii) strain energy density criteria.
Abstract: The paper presents a review of multiaxial fatigue failure criteria based on the critical plane concept. The criteria have been divided into three groups, according to the fatigue damage parameter used in the criterion, i.e. (i) stress, (ii) strain and (iii) strain energy density criteria. Each criterion was described mainly by the critical plane orientation. Multiaxial fatigue criteria based on the critical plane concept usually apply different loading parameters in the critical plane whose orientation is determined by (a) only shear loading parameters (crack Mode II or III), (b) only normal loading parameters (crack Mode I) or sometimes (c) mixed loading parameters (mixed crack Mode). There are also criteria based on few critical plane orientations and criteria based on critical plane orientations determined by a weighted averaging process of rotating principal stress axes.

291 citations


Cites methods from "Multiaxial fatigue life prediction ..."

  • ...This approach is used in a few multiaxial fatigue criteria ( Das and Sivakumar, 1999, 2000; Zolochevsky, 2000)....

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  • ...−− Cyclic, non-proportional (Socie, 1987; Das and Sivakumar, 2000 *) +...

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Journal ArticleDOI
TL;DR: In this article, the frequency domain formula of equivalent Lemaitre stress taking into account the hydrostatic stress effect is first introduced, and the corresponding method for estimating fatigue life under multiaxial random loading is developed based on multi-axial S-N curve.

36 citations

Journal ArticleDOI
TL;DR: In this article, a new energy-based critical plane fatigue damage parameter was proposed to assess the fatigue damage of unnotched and notched components using a newly developed Energy-Based Critical Plane Fatigue Damage (EBD) parameter.

28 citations

Journal ArticleDOI
Baozhong Wang1, Wantang Fu1, Zhiqing Lv1, Ping Jiang1, Wenhui Zhang1, Yongjun Tian1 
TL;DR: In this article, the hot deformation behavior of a 12%Cr ultra-supercritical rotor steel was investigated through compression test using Gleeble-3500 thermal-mechanical simulator within the temperature range of 1173-1473 K and the strain rate range of 0.01-10 s−1, and the corresponding flow curves were determined.
Abstract: The hot deformation behavior of a 12%Cr ultra-super-critical rotor steel was investigated through compression test using Gleeble-3500 thermal–mechanical simulator within the temperature range of 1173–1473 K and the strain rate range of 0.01–10 s−1, and the corresponding flow curves were determined. The results showed that the flow stress and the peak strain increase with the drop in the deformation temperature and the rise in the strain rate. The critical Z value, below which the complete dynamic recrystallization may occur, is 3.53 × 1017. The hot deformation activation energy of the steel is 439 kJ/mol, and the hot deformation equation is e˙=1.773×1015[sinh(ασp)]4.420exp−439,000RT. For the convenience of the practical application, the regressed peak stress can be described as σp=16.7lne˙+881,802T−507.3.

27 citations

Journal ArticleDOI
TL;DR: In this article, the analysis of nonstationary stresses and fatigue cracking in impulse steam turbine rotors is presented, and the most frequent crack locations are identified based on the same.

27 citations

References
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Journal ArticleDOI
TL;DR: In this paper, a modification to Brown and Miller's critical plane approach is proposed to predict multiaxial fatigue life under both in-phase and out-of-phase loading conditions.
Abstract: — A modification to Brown and Miller's critical plane approach is proposed to predict multiaxial fatigue life under both in-phase and out-of-phase loading conditions. The components of this modified parameter consist of the maximum shear strain amplitude and the maximum normal stress on the maximum shear strain amplitude plane. Additional cyclic hardening developed during out-of-phase loading is included in the normal stress term. Also, the mathematical formulation of this new parameter is such that variable amplitude loading can be accommodated. Experimental results from tubular specimens made of 1045 HR steel under in-phase and 90° out-of-phase axial-torsional straining using both sinusoidal and trapezoidal wave forms were correlated within a factor of about two employing this approach. Available Inconel 718 axial-torsional data including mean strain histories were also satisfactorily correlated using the aforementioned parameter.

1,493 citations

Journal ArticleDOI
Bong-Ryul You1, Soon-Bok Lee1
TL;DR: In this paper, the authors classified multiaxial fatigue analysis into five viewpoints, i.e. empriical formulas and modifications of the Coffin-Manson equation, application of stress or strain invariants, use of the space averages of stress and strain, critical plane approaches, and use of energy which has accumulated on the materials.

326 citations