Fracture toughness determination of Ti(3)Si(Al)C(2) and Al(2)O(3) using a single gradient notched beam (SGNB) method
文献类型：期刊论文
| 作者 | D. T. Wan ; Y. W. Bao ; J. Z. Peng ; Y. C. Zhou |
| 刊名 | Journal of the European Ceramic Society
 |
| 出版日期 | 2009 |
| 卷号 | 29期号:4页码:763-771 |
| ISSN号 | 0955-2219 |
| 关键词 | Testing Toughness Ti(3)SiAlC(2) Mechanical properties indentation techniques testing temperature silicon-nitride specimens ceramics precracking composites ti3sic2 size |
| 中文摘要 | In this work, we suggest a new and simple method named single gradient notched beam (SGNB) method for determining the fracture toughness of Ti(3)Si(Al)C(2) and Al(2)O(3) with four-point bending specimens. For the specimen with a gradient notch, a sharp natural crack will initiate and extends from the tip of the triangle under increasing load. Based on the straight through crack assumption or on the slice model, the stress intensity factor coefficient for this notched beam was derived. The fracture toughness can be calculated from the maximum load and the minimum of the stress intensity factor coefficient without knowing the crack length. To verify the feasibility and reliability of this suggested method, the SGNB method and two other conventional methods, e.g. the chevron notched beam (CNB) method and single edge notched beam (SENB) method, were performed to determine the fracture toughness of Ti(3)Si(Al)C(2) and Al(2)O(3). The measured fracture toughness values obtained from the SGNB method agreed well with those from conventional fracture toughness tests. (c) 2008 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32335]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | D. T. Wan,Y. W. Bao,J. Z. Peng,et al. Fracture toughness determination of Ti(3)Si(Al)C(2) and Al(2)O(3) using a single gradient notched beam (SGNB) method[J]. Journal of the European Ceramic Society,2009,29(4):763-771. |
| APA | D. T. Wan,Y. W. Bao,J. Z. Peng,&Y. C. Zhou.(2009).Fracture toughness determination of Ti(3)Si(Al)C(2) and Al(2)O(3) using a single gradient notched beam (SGNB) method.Journal of the European Ceramic Society,29(4),763-771. |
| MLA | D. T. Wan,et al."Fracture toughness determination of Ti(3)Si(Al)C(2) and Al(2)O(3) using a single gradient notched beam (SGNB) method".Journal of the European Ceramic Society 29.4(2009):763-771. |
入库方式： OAI收割
来源：金属研究所
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