書誌事項
- タイトル別名
-
- Minor Special Issue on Corrosion. Crack Stability in Rate Sensitive Brittle Materials and Pseudo-Stable Crack Extention.
- ハカイ ジンセイチ ガ キレツ ソクド ニ イゾンスル ゼイセイ ザイリョウ
この論文をさがす
抄録
By assuming that the fracture toughness value (crack resistance force) R is expressed by a constitutive relation as R (a, a) ∝ R1(a)·am*, (a and a; crack length and crack velocity, m*; rate sensitivity parameter), the stability condition of cracked specimens is analytically discussed for rate sensitive brittle materials such as glasses and ceramics. The stability criterion obtained is identical in its form to the one reported by Gurney and Hunt in which the rate effect is not taken into account. However, by introducing the rate effect into the analysis, it was found that an initial crack begins to extend before the load maximum appears. This fact that load gets larger, nevertheless crack extends, is named “pseudo stable phenomena (PSP)”.<br>Load-displacement and crack extension behaviour were simulated by numerical calculations including the rate effect. The PSP was confirmed to appear in rate sensitive brittle materials. Experiments on Pyrex glass also showed the appearance of PSP, which is prominent when EBΛ* gets larger (E and B; Youngs modulus and thickness of the specimen, Λ*; the compliance of the testing machine).
収録刊行物
-
- 材料
-
材料 42 (479), 969-975, 1993
公益社団法人 日本材料学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001205391916032
-
- NII論文ID
- 110002298990
-
- NII書誌ID
- AN00096175
-
- ISSN
- 18807488
- 05145163
-
- NDL書誌ID
- 3833214
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可