FATIGUE LIFE PREDICTION OF TENONS IN AEROENGINE COLD-SECTION DISCS BASED ON SMALL CRACK GROWTH

Liu Shaolun; Wu Xueren; Huang Hongfa; Liu Jianzhong; Ding Chuanfu; Han Xipeng; Yang Shijie; Wei Duokui

Volume 14 Issue 4

Oct. 1999

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Article Navigation > Journal of Aerospace Power > 1999 > 14(4): 375-381

Liu Shaolun, Wu Xueren, Huang Hongfa, Liu Jianzhong, Ding Chuanfu, Han Xipeng, Yang Shijie, Wei Duokui, . FATIGUE LIFE PREDICTION OF TENONS IN AEROENGINE COLD-SECTION DISCS BASED ON SMALL CRACK GROWTH[J]. Journal of Aerospace Power, 1999, 14(4): 375-381.

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FATIGUE LIFE PREDICTION OF TENONS IN AEROENGINE COLD-SECTION DISCS BASED ON SMALL CRACK GROWTH

1.
Lab of mechanical properties, Beijing Institute of Aeronautics Materials,Beijing 100095
2.
Research Institute of Aeroegine,Shengyang 110015

Received Date: 1999-02-01
Publish Date: 1999-10-28

Abstract

Abstract

Tests for small and large crack growth were conducted on substructure model of tenon in the aeroengine cold section disc which was made of Titanium alloy TC11.Stress intensity factor solution of the substructure was obtained by FEM and its weight functions were analyzed.Plasticity introduced Newman Crack Closure model was used to predict the total fatigue life of the substructure,in which small crack was initiated from swallow-tailed groove bottom.Prediction results are in good agreement with tested results.
- Aeroengine,
- Cracks,
- Fatigue life,
- Prediction