Compressor Disk Spin Test
Sample Applications
Compressor Disk Spin Test
Crack growth from a bolt hole in a disk model
This example shows the growth of an initially quarter circular corner crack from a bolt hole in a gas turbine compressor disk. The analysis simulates a spin test. The crack grows to a through crack then advances into the structure. The analysis shown below is a single Zencrack analysis in which the initial corner crack grows through the thickness and continues as a through crack. The analysis shown was carried out using Zencrack 7.8-1 with Abaqus 6.12-1.
The analysis is based on data in the first reference listed below. More detailed discussion of the analysis, including the issue of gross plasticity at the bolt hole, is contained in the second reference listed below.
The animations below use displaced plots to help highlight the crack development.
Figure 1 - Crack position during the corner crack phase
Figure 2 - Mises stress part way through the analysis
Figure 3 - Calculated crack growth profiles
References
Prediction Of Crack Growth From Bolt Holes In A Disc
W.Z. Zhuang
International Journal of Fatigue 22 (2000), pg 241-250.
Predicting Large Scale Crack Growth In 3D Finite Element Models
B. Browning, G. Cook, C. Timbrell
Abaqus Users' Conference, Maastricht, The Netherlands, May 30 - June 1 2001.