| タイトル | Rate effects on delamination fracture toughness of graphite/epoxy composites |
| 著者（英） | Auser, J. W.; Yaniv, G.; Daniel, I. M. |
| 著者所属（英） | Northwestern Univ. |
| 発行日 | 1987-01-01 |
| 言語 | eng |
| 内容記述 | The effects of loading rate on interlaminar fracture toughness were investigated for two graphite/epoxy materials, one with a brittle matrix and the other with a toughened one. Mode I delamination fracture toughness was studied by means of uniform-width, width-tapered, and height-tapered double cantilever beam specimens. The specimens were loaded at various crosshead rates corresponding to crack extension rates up to 26 m/s. It was found that for the brittle-matrix composite the energy release rate increases up to a certain crack velocity and thereafter it decreases. In the case of the toughened-matrix composite the energy release rate decreases monotonically with increasing crack velocity. |
| NASA分類 | COMPOSITE MATERIALS |
| レポートNO | 88A31442 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/371661 |
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