K-0924 Effect of micro-fracture on the vibration characteristics of C/C composites
Details
Fracture behavior of three-dimensional reinforced C/C disk was investigated to establish design criteria for high temperature turbine disk. Fly-out objects were detected from the rotation speed of 3000 r.p.m and the vibration amplitude increased with increase of rotation speed. The observation of the surface after high speed rotation revealed that the object flown-out from the disk was θ-directional fiber bundles. The vibration increasing behavior was predicted with simplified model and the result agreed well in tendency.
