IMECH-IR  > 非线性力学国家重点实验室
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
Source PublicationJournal of The American Ceramic Society
2011
Volume94Issue:2Pages:332-335
ISSN0002-7820
AbstractAccording 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.
KeywordCeramics
Subject AreaMaterials Science
DOI10.1111/j.1551-2916.2010.04289.x
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000286830100007
WOS KeywordCERAMICS
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
Funding OrganizationThis work was supported by National Natural Science Foundation of China (nos. 11025212, 10872200, and 10721202).
DepartmentLNM实验平台
Classification一类
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/44945
Collection非线性力学国家重点实验室
Corresponding AuthorZhang, TH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China
Recommended Citation
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.
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.
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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