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- 淡路 英夫
- 名古屋工業大学
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- 崔 成〓
- 名古屋工業大学
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- JAYASEELAN Daniel Doni
- National Institute of Advanced Industrial Science and Technology
書誌事項
- タイトル別名
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- Indirect Estimation of Critical Frontal Process-Zone Size Using a Single-Edge V-Notched-Beam Technique.
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抄録
The size of the frontal process-zone at the crack tip of ceramics is an important factor to assess the toughening mechanisms operative in the material. An indirect technique is proposed here to estimate the critical size of the frontal process zone in ceramics using a single-edge V-notched beam (SEVNB) method. A three-point flexure test was carried out on alumina specimens containing a sharp V-shaped notch whose depth was varied. Then, a critical local stress was calculated at a critical distance from the notch tip. The frontal process-zone size at the beginning of crack propagation, namely, the critical frontal process-zone size, was determined as the distance between the notch tip and the point where the critical local stress has the same value as the flexural strength of the specimen. This concept is based on a local fracture criterion. The calculated critical frontal process-zone size of alumina ceramics was 11.4μm based on the linear elasticity, and 22.8μm based on the Dugdale model.
収録刊行物
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- Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌)
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Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌) 109 (1271), 591-595, 2001
公益社団法人 日本セラミックス協会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282680224288640
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- NII論文ID
- 110002288874
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- NII書誌ID
- AN10040326
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- COI
- 1:CAS:528:DC%2BD3MXmtFyrs7c%3D
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- ISSN
- 18821022
- 09145400
- http://id.crossref.org/issn/09145400
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- NDL書誌ID
- 5831473
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可