Singularities of Contact Stress and Electric Field During Indentation of Piezoelectric Ceramics by Cylindrical, Flat Indenter | |
Chen, Wenke1,2; Jin, Wuyin1 | |
2022-04-01 | |
发表期刊 | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
ISSN | 1002-185X |
卷号 | 51期号:4页码:1218-1225 |
摘要 | The finite element method (FEM) was used to simulate and to verify the axisymmetric nanoindentation response of a transversely isotropic piezoelectric ceramics by a conductive rigid flat indenter from half-space to thin film. The cylindrical, flat indenter without prescribed electric force was adopted to mechanically load the piezoelectric ceramics. The results show that the linear relationship between indentation load and indentation displacement is obtained. And the same relationship is obtained between electric potential and indentation displacement. In addition, resultant mechanoelectrical responses were analyzed. The simulation results indicate that the contact stress and electric field exhibit singularities round the edge of the indenter. Both stress and electric field singularities vary exponentially with respect to the thickness of the solids under the indenter. At the same time, the normal stress and electric potential distributions of the direct piezoelectric effects are given. Through the fitting formula of the normal stress, normal electric potential and tangential electric potential from the indentation interior to the contact edge under different indentation depths, the singular constants of electric field and stress field under different thickness of piezoelectric ceramics are proposed, and their variation rules are analyzed. Copyright © 2022, Northwest Institute for Nonferrous Metal Research. Published by Science Press. All rights reserved. |
关键词 | Geometry Indentation Piezoelectric materials Piezoelectricity Axisymmetric Contact Stress Flat indenter Half spaces Indenters Nano indentation Normal stress Singularity Thin-films Transversely isotropic piezoelectric ceramics |
收录类别 | EI |
语种 | 英语 |
出版者 | Science Press |
EI入藏号 | 20222012120225 |
EI主题词 | Electric potential |
EI分类号 | 701.1 Electricity: Basic Concepts and Phenomena ; 708.1 Dielectric Materials ; 921 Mathematics |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/158423 |
专题 | 机电工程学院 |
作者单位 | 1.School of Mechanical and Electronic Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Mechanical Engineering, University of Kentucky, KY; 40506, United States |
第一作者单位 | 兰州理工大学 |
第一作者的第一单位 | 兰州理工大学 |
推荐引用方式 GB/T 7714 | Chen, Wenke,Jin, Wuyin. Singularities of Contact Stress and Electric Field During Indentation of Piezoelectric Ceramics by Cylindrical, Flat Indenter[J]. Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,2022,51(4):1218-1225. |
APA | Chen, Wenke,&Jin, Wuyin.(2022).Singularities of Contact Stress and Electric Field During Indentation of Piezoelectric Ceramics by Cylindrical, Flat Indenter.Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,51(4),1218-1225. |
MLA | Chen, Wenke,et al."Singularities of Contact Stress and Electric Field During Indentation of Piezoelectric Ceramics by Cylindrical, Flat Indenter".Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering 51.4(2022):1218-1225. |
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