Strain rate-dependent compressive properties of C/C composites

Qinlu Yuan, Yulong Li, Hejun Li, Shuping Li, Lingjun Guo

科研成果: 期刊稿件文章同行评审

14 引用 (Scopus)

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
485
1-2
DOI
出版状态已出版 - 25 6月 2008

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