DAMAGE TOLERANCE ANALYSIS OF EXPERIMENTAL DISK WITH CRACKS IN SLOTBASE

Chen Guanghao; Wang Rongqiao; Hong Qilin

Volume 9 Issue 4

Oct. 1994

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Article Navigation > Journal of Aerospace Power > 1994 > 9(4): 416-418,446

Chen Guanghao, Wang Rongqiao, Hong Qilin. DAMAGE TOLERANCE ANALYSIS OF EXPERIMENTAL DISK WITH CRACKS IN SLOTBASE[J]. Journal of Aerospace Power, 1994, 9(4): 416-418,446.

Citation:

Chen Guanghao, Wang Rongqiao, Hong Qilin. DAMAGE TOLERANCE ANALYSIS OF EXPERIMENTAL DISK WITH CRACKS IN SLOTBASE[J]. Journal of Aerospace Power, 1994, 9(4): 416-418,446.

Chen Guanghao, Wang Rongqiao, Hong Qilin. DAMAGE TOLERANCE ANALYSIS OF EXPERIMENTAL DISK WITH CRACKS IN SLOTBASE[J]. Journal of Aerospace Power, 1994, 9(4): 416-418,446.

Citation:

Chen Guanghao, Wang Rongqiao, Hong Qilin. DAMAGE TOLERANCE ANALYSIS OF EXPERIMENTAL DISK WITH CRACKS IN SLOTBASE[J]. Journal of Aerospace Power, 1994, 9(4): 416-418,446.

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DAMAGE TOLERANCE ANALYSIS OF EXPERIMENTAL DISK WITH CRACKS IN SLOTBASE

4th Dept.,Beijing University of Aeronautics and Astronautics,Beijing 100083

Received Date: 1993-11-01
Rev Recd Date: 1994-01-01
Publish Date: 1994-10-28

Abstract

Abstract

The damage tolerance of an experimental disk is analyzed in the light of fracture mechanics.The relation of crack tip parameter and crack length, a ,is determined by combination of the FEM and the J-integral method.The critical crack size a_c is obtained based on the material toughness K_IC .Then the crack propagation life of the disk is determined.The calculated results are consistent with the experimental data.Therefore,the present method as well as the computer program can be used for strength evaluation of a turbine disk.