期刊
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
卷 50, 期 14-15, 页码 2542-2547出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijsolstr.2013.04.004
关键词
Indentation deformation; Piezoelectric materials; 3-D FEM simulation; Load-displacement relation
类别
资金
- NSF [CMMI-0800018]
- Directorate For Engineering [0959896] Funding Source: National Science Foundation
- Div Of Civil, Mechanical, & Manufact Inn [0959896] Funding Source: National Science Foundation
Three-dimensional finite element analysis was used to study the effect of the angle between the loading direction and the axisymmetric direction on the indentation behavior of a transversely isotropic piezoelectric half-space by a cylindrical indenter of flat end. Two cases were considered in the analysis, which included (a) the indentation by an insulating indenter, and (b) the indentation by a conducting indenter. Both the indentation load and the indentation-induced potential were found to be proportional to the indentation depth. Using the simulation results and the analytical relationship for the indentation by a rigid, insulating indenter, semi-analytical relationships were developed between the indentation load and the indentation depth and between the indentation-induced potential on the indenter and the indentation depth for the conducting indenter, respectively. The proportionality between the indentation-induced potential and the indentation depth is only a function of the angle between the loading direction and the poling direction, independent of the type of indenters, which may be used to measure the relative direction of the loading axis to the axisymmetric axis of transversely piezoelectric materials from the indentation test. (C) 2013 Elsevier Ltd. All rights reserved.
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