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数値シミュレーションによる欠陥を有するセラミックスの破壊強度評価 : 第1報,基礎理論とアルミナセラミックスへの応用
http://hdl.handle.net/2298/13051
http://hdl.handle.net/2298/130513c720349-6583-4ad5-9670-2648159f8cc5
名前 / ファイル | ライセンス | アクション |
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110002371861.pdf (593.0 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-11-11 | |||||
タイトル | ||||||
タイトル | 数値シミュレーションによる欠陥を有するセラミックスの破壊強度評価 : 第1報,基礎理論とアルミナセラミックスへの応用 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題 | Ceramics, Fracture Toughness, Stress Intensity Factor, Fracture Mechanics, Body Force Method, Fracture Strength, Defect, Effective Fracture Toughness at Crack Tip, Effective Stress Intensity Factor at Crack Tip | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
著者 |
森, 和也
× 森, 和也× 野口, 博司× Tabarrok, Berouz |
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別言語の著者 |
Mori, Kazuya
× Mori, Kazuya× Noguchi, Hiroshi |
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内容記述 | ||||||
内容記述 | It is well known that the fracture strength of ceramics with small defects is lower than the strength estimated by linear fracture mechanics, based on the strength of a large defect. This phenomenon can be explained by the increase in the crack resistance with crack propagation. This R-curve behavior is caused mainly by grain bridging in the wake of the crack. Recently the grain-bridging stresses for alumina and silicon nitride have been measured experimentally. In this study, the fracture strength is estimated by numerical simulation, based on grain-bridging stresses. In the simulation, the effective stress intensity factor at the crack tip, K_<tip>, and the effective fracture toughness at the crack tip, (K_<tip>)_c, are used for the conditions of stable and unstable crack propagation. It is found that the fracture toughness for long cracks, K_<Ic>, depends on specimen geometries, and the maximum values of K_c approach (K_<tip>)_c as the initial crack length approaches the width of the specimen. Furthermore a convenient method to evaluate (K_<tip>)_c experimentally is discussed. | |||||
書誌情報 |
日本機械学會論文集. A編 巻 60, 号 572, p. 984-991, 発行年 1994-04-25 |
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書誌レコードID | ||||||
収録物識別子 | AN0018742X | |||||
権利 | ||||||
権利情報 | 社団法人 日本機械学会 | |||||
情報源(ISSN) | ||||||
関連名称 | 03875008 | |||||
フォーマット | ||||||
内容記述 | application/pdf | |||||
形態 | ||||||
593010 bytes | ||||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
日本十進分類法 | ||||||
主題 | 530 | |||||
その他の言語のタイトル | ||||||
その他のタイトル | Evaluation of Fracture Strength for Ceramics with Defects by Numerical Simulation : 1st Report, Fundamental Theory and Application to Alumina Ceramics | |||||
タイトル(ヨミ) | ||||||
その他のタイトル | スウチ シミュレーション ニ ヨル ケッカン オ ユウスル セラミックス ノ ハカイ キョウド ヒョウカ ダイ1ポウ キソ リロン ト アルミナ セラミックス エノ オウヨウ | |||||
出版者 | ||||||
出版者 | 社団法人 日本機械学会 | |||||
出版者(ヨミ) | ||||||
ニホン キカイ ガッカイ | ||||||
別言語の出版者 | ||||||
The Japan Society of Mechanical Engineers | ||||||
資源タイプ | ||||||
内容記述 | 論文(Article) | |||||
資源タイプ・ローカル | ||||||
雑誌掲載論文 | ||||||
資源タイプ・NII | ||||||
Journal Article | ||||||
資源タイプ・DCMI | ||||||
text | ||||||
資源タイプ・ローカル表示コード | ||||||
01 | ||||||
別フォーマットである | ||||||
関連タイプ | isFormatOf | |||||
関連識別子 | http://hdl.handle.net/2298/13052 | |||||
URL | ||||||
内容記述 | http://ci.nii.ac.jp/naid/110002371861@@@http://www.jsme.or.jp | |||||
コメント | ||||||
本文データは学協会の許諾に基づきCiNiiから複製したものである | ||||||
コメント | ||||||
第2報は、関連を参照のこと。 |