| A Work Approach to Determine Vickers Indentation Fracture Toughness |
| Feng YH(冯义辉) ; Zhang TH(张泰华); Yang R(杨荣); Zhang, TH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China
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| 发表期刊 | Journal of The American Ceramic Society
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| 2011
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| 卷号 | 94期号:2页码:332-335 |
| ISSN | 0002-7820
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| 摘要 | According to the comparison of Vickers microindentation tests and Vickers macroindentation tests on several brittle materials, it is found that the ratio of hardness (H) to elastic modulus (E) is sensitive to well-developed radial cracks, but the ratio of unloading work (W(u)) to total loading work (W(t)) is not. Based on this finding together with the approximate linear relationship between the ratio of H to reduced modulus (E(r)) and W(u)/W(t), a new approach taking W(u)/W(t) instead of H/E as the input parameter to determine Vickers indentation fracture toughness is proposed. For this proposed approach, all input parameters can be obtained in one single instrumented indentation test for fracture toughness, thus the test procedure can be simplified significantly. The formula of the newly proposed approach is calibrated by the macroindentation tests on several brittle materials. The validity of the new approach is investigated by comparing its estimation with the old one's. |
| 关键词 | Ceramics
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| 学科领域 | Materials Science
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| DOI | 10.1111/j.1551-2916.2010.04289.x
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| URL | 查看原文
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000286830100007
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| 关键词[WOS] | CERAMICS
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| WOS研究方向 | Materials Science
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| WOS类目 | Materials Science, Ceramics
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| 项目资助者 | This work was supported by National Natural Science Foundation of China (nos. 11025212, 10872200, and 10721202).
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| 课题组名称 | LNM实验平台
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| 论文分区 | 一类
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/44945
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| 专题 | 非线性力学国家重点实验室
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| 通讯作者 | Zhang, TH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China |
推荐引用方式
GB/T 7714 |
Feng YH,Zhang TH,Yang R,et al. A Work Approach to Determine Vickers Indentation Fracture Toughness[J]. Journal of The American Ceramic Society,2011,94,2,:332-335.
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| APA |
冯义辉,张泰华,杨荣,&Zhang, TH .(2011).A Work Approach to Determine Vickers Indentation Fracture Toughness.Journal of The American Ceramic Society,94(2),332-335.
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| MLA |
冯义辉,et al."A Work Approach to Determine Vickers Indentation Fracture Toughness".Journal of The American Ceramic Society 94.2(2011):332-335.
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