2 0 0 0 OA 子ども発達支援士の養成〜佐賀女子短期大学での取り組みから〜
- 著者
- 菅原 航平/泉 万里江/水田 茂久/高木 京子 泉 万里江 水田 茂久 高木 京子
- 出版者
- 佐賀女子短期大学
- 雑誌
- 研究紀要 (ISSN:02882965)
- 巻号頁・発行日
- vol.50, pp.225-232, 2016-03-08
1 0 0 0 OA 炭化ケイ素長繊維強化チタン合金における疲労き裂の伝ぱと繊維架橋応力の測定
- 著者
- 秋庭 義明 木村 英彦 原 航平 田中 啓介
- 出版者
- 公益社団法人 日本材料学会
- 雑誌
- 材料 (ISSN:05145163)
- 巻号頁・発行日
- vol.54, no.7, pp.698-703, 2005 (Released:2006-04-07)
- 参考文献数
- 13
Single edge notched specimens of a unidirectional SiC long fiber reinforced titanium alloy were fatigued under four point bending. Propagation behavior of fatigue cracks was observed on the basis of the effect of the fiber bridging. The branched fatigue cracks were initiated from the notch root. The crack propagation rate decreased with crack extension due to the crack bridging by reinforced fibers. The longitudinal stress in the reinforced fiber was measured by using high spatial resolution synchrotron radiation. The interfacial frictional stress between the matrix and the fiber could be directly determined by X-ray method. The bridging stress was also measured as a function of a distance from a crack-tip. The stress intensity factor range corrected on the basis of the shielding effect agreed well with that for the monolithic titanium alloy, when compared at the same crack propagation rate.