A LOW CYCLE FATIGUE LIFE PREDICTION METHOD FOR BOLT HOLES OF DISK

Wang Lusheng; Gong Mengxian; Liang Cairong; Ru Meixiu

Volume 3 Issue 2

Apr. 1988

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Article Navigation > Journal of Aerospace Power > 1988 > 3(2): 113-116,185

Wang Lusheng, Gong Mengxian, Liang Cairong, Ru Meixiu. A LOW CYCLE FATIGUE LIFE PREDICTION METHOD FOR BOLT HOLES OF DISK[J]. Journal of Aerospace Power, 1988, 3(2): 113-116,185.

Citation:

Wang Lusheng, Gong Mengxian, Liang Cairong, Ru Meixiu. A LOW CYCLE FATIGUE LIFE PREDICTION METHOD FOR BOLT HOLES OF DISK[J]. Journal of Aerospace Power, 1988, 3(2): 113-116,185.

Wang Lusheng, Gong Mengxian, Liang Cairong, Ru Meixiu. A LOW CYCLE FATIGUE LIFE PREDICTION METHOD FOR BOLT HOLES OF DISK[J]. Journal of Aerospace Power, 1988, 3(2): 113-116,185.

Citation:

Wang Lusheng, Gong Mengxian, Liang Cairong, Ru Meixiu. A LOW CYCLE FATIGUE LIFE PREDICTION METHOD FOR BOLT HOLES OF DISK[J]. Journal of Aerospace Power, 1988, 3(2): 113-116,185.

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A LOW CYCLE FATIGUE LIFE PREDICTION METHOD FOR BOLT HOLES OF DISK

Gas Turbine Establishment

Received Date: 1987-08-01
Publish Date: 1988-04-28

Abstract

Abstract

A LCF(Low Cycle Fatigue)Life prediction method is provided on the basis of systematic experimental investigation, in which the median and reliability LCF Lives to crack initiation for the bolt holes of rotating disk can be predicted precisely by statistic data of smooth round bar specimen LCF lives to failure. The study shows that the LCF life to crack initiation for bolt holes of disk usually depends on the maximum strain history appliod to the critical points of the bolt holes, and the strain gradient influence on the LCF life to crack initiation can be neglected as usual. In addition, the study also indicates that the median LCF life usually depends on the steel chemical composition and its thermal treatment.