Spherical indentation method for estimating equibiaxial residual stress and elastic-plastic properties of metals simultaneously | |
Peng GL1; Lu ZK2; Ma Y1; Feng YH(冯义辉)2; Huan Y(郇勇)2; Zhang TH(张泰华)1 | |
发表期刊 | JOURNAL OF MATERIALS RESEARCH |
2018-04-27 | |
卷号 | 33期号:8页码:884-897 |
ISSN | 0884-2914 |
摘要 | For instrumented spherical indentation, the presence of equibiaxial residual stress in a material will lead the indentation load-depth curve to shift upward or downward. The load differences between the stressed and stress-free curves were used to estimate the equibiaxial residual stress. Using dimensional analysis and finite element simulations, the equibiaxial residual stress was related to the elastic-plastic parameters and the relative load difference at a fixed normalized indentation depth (h/R = 0.1). Based on these expressions, and together with the method for determining elastic-plastic parameters established in our previous work, an integrated method was proposed to estimate the equibiaxial residual stress and elastic-plastic parameters of metals simultaneously via instrumented spherical indentation. This method avoids preknowledge of the yield strength and measuring the contact area. Applications were illustrated on Al 2024, Al 7075, and Ti Grade 5 with introduced stresses. By comparing the results determined by this integrated method with the reference values, the maximum relative error is generally within +/- 10% for the yield strength, within +/- 15% for the elastic modulus, and within +/- 20% for the equibiaxial |
DOI | 10.1557/jmr.2018.57 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000435838600002 |
关键词[WOS] | Instrumented Sharp Indentation ; Mechanical-properties ; Sensing Indentation ; Knoop Indentation ; Strain Fields ; Nanoindentation ; Load ; Directions ; Indenters |
WOS研究方向 | Materials Science |
WOS类目 | Materials Science, Multidisciplinary |
项目资助者 | National Natural Science Foundation of China(11727803 ; Public Welfare Project of Zhejiang Province(2015C31074) ; 11772302 ; 11672356 ; 11502235 ; 11402233) |
论文分区 | Q3 |
力学所作者排名 | 4 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/77640 |
专题 | 非线性力学国家重点实验室 |
通讯作者 | Zhang TH(张泰华) |
作者单位 | 1.Zhejiang Univ Technol, Coll Mech Engn, Hangzhou 310014, Zhejiang, Peoples R China 2.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 | Peng GL,Lu ZK,Ma Y,et al. Spherical indentation method for estimating equibiaxial residual stress and elastic-plastic properties of metals simultaneously[J]. JOURNAL OF MATERIALS RESEARCH,2018,33,8,:884-897. |
APA | Peng GL,Lu ZK,Ma Y,Feng YH,Huan Y,&Zhang TH.(2018).Spherical indentation method for estimating equibiaxial residual stress and elastic-plastic properties of metals simultaneously.JOURNAL OF MATERIALS RESEARCH,33(8),884-897. |
MLA | Peng GL,et al."Spherical indentation method for estimating equibiaxial residual stress and elastic-plastic properties of metals simultaneously".JOURNAL OF MATERIALS RESEARCH 33.8(2018):884-897. |
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