A COMPOUND FATIGUE INVESTIGATION OF PLATE SPECIMEN UNDER LOW-CYCLE LOAD SUPERPOSED ON HIGH CYCLE LOAD

Xu Fengjing; Nie Jingxu; Zhao Changzhan

Volume 7 Issue 2

Apr. 1992

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Article Navigation > Journal of Aerospace Power > 1992 > 7(2): 121-124,192

Xu Fengjing, Nie Jingxu, Zhao Changzhan. A COMPOUND FATIGUE INVESTIGATION OF PLATE SPECIMEN UNDER LOW-CYCLE LOAD SUPERPOSED ON HIGH CYCLE LOAD[J]. Journal of Aerospace Power, 1992, 7(2): 121-124,192.

Citation:

Xu Fengjing, Nie Jingxu, Zhao Changzhan. A COMPOUND FATIGUE INVESTIGATION OF PLATE SPECIMEN UNDER LOW-CYCLE LOAD SUPERPOSED ON HIGH CYCLE LOAD[J]. Journal of Aerospace Power, 1992, 7(2): 121-124,192.

Xu Fengjing, Nie Jingxu, Zhao Changzhan. A COMPOUND FATIGUE INVESTIGATION OF PLATE SPECIMEN UNDER LOW-CYCLE LOAD SUPERPOSED ON HIGH CYCLE LOAD[J]. Journal of Aerospace Power, 1992, 7(2): 121-124,192.

Citation:

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A COMPOUND FATIGUE INVESTIGATION OF PLATE SPECIMEN UNDER LOW-CYCLE LOAD SUPERPOSED ON HIGH CYCLE LOAD

Beijing University of Aeronautics and Astronautics,Beijing 100083

Received Date: 1991-12-01
Publish Date: 1992-04-28

Abstract

Abstract

According to real operating conditions of turbine engine blades in service,a series of combination tests of various load matching and frequency matching for plate specimens was carried out on the compound fatigue testing rig which can simulate operating loads on the blades.From the test results and theoretical analyses,some characteristics and the regularities of this compound fatigue are obtained.A new method of life prediction for this compound fatigue is presented in this paper.The calculated results of this method are in good agreement with the experiments.