摘要
To understand the strain rate sensitivity of compressive properties of carbon/carbon (C/C) composites, both the quasi-static and dynamic compressive tests of C/C composites were conducted using electronic universal testing machine and modified split Hopkinson pressure bar (MSHPB) with pulse shapers. The results indicated that the compressive strength and stiffness of the C/C composites were sensitive to the strain rate, and increased with the increase of strain rate. The samples failed by shearing under quasi-static loading, and by crushing under dynamic loading. The fiber failure was characteristic of extensive debonding within bundle and many small steps under quasi-static loads, where as, the fiber failure was characterized by fiber bundle multiple splitting with abrupt fracture surfaces under dynamic loads.
源语言 | 英语 |
---|---|
页(从-至) | 632-637 |
页数 | 6 |
期刊 | Materials Science and Engineering: A |
卷 | 485 |
期 | 1-2 |
DOI | |
出版状态 | 已出版 - 25 6月 2008 |