Volume 2, 2009DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|1311 - 1316
|15 September 2009
Failure and fragmentation of alumina cylinders under compressive loadingF. Zhou and Y. Wang
Mechanics and Materials Science Research Centre, Ningbo University 315211, PR China
Published online: 15 September 2009
Quasistatic compressive strength of alumina (Al2O3) cylinders was measured using specimen of two sizes. The strength of the material was dependent on the specimen size. High speed video photography showed that the failure of the cylindrical specimen started from axial splitting, and after failure the specimen fragmentized into small pieces. Although the loading applied to the specimen was quasistatic, the failure and fragmentation processes of the materials were dynamic. A fragmentation model was proposed for estimating the average sizes of the fragments. The calculated fragment sizes agreed reasonably well with the experimental data.
© EDP Sciences 2009