[1] Xiong Ke**, Zhang Weigong, Luo Ying,. Research on 1-3 Orthogonal AnisotropicPiezoelectric Composite Material Sensors* [J]. Journal of Southeast University (English Edition), 2002, 18 (2): 136-140. [doi:10.3969/j.issn.1003-7985.2002.02.008]

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Research on 1-3 Orthogonal AnisotropicPiezoelectric Composite Material Sensors^*()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

18

Issue:

2002 2

Page:

136-140

Research Field:

Automation

Publishing date:

2002-06-30

Info

Title:

Research on 1-3 Orthogonal AnisotropicPiezoelectric Composite Material Sensors^*

Author(s):

Xiong Ke^1**;  Zhang Weigong²;  Luo Ying³

¹The Key Laboratory for Smart Materials and Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
²Department of Instrument Science and Engineering, Southeast University, Nanjing 210096, China

Keywords:

1-3 PCM;  orthogonal anisotropic;  sensor;  strain-stress relationship

PACS:

TP212

DOI:

10.3969/j.issn.1003-7985.2002.02.008

Abstract:

Piezoelectric composite material(PCM)is an important branch of modern sensor and actuator materials with wide applications in smart structures. In this paper, based on piezoelectric ceramic, composite and experimental mechanics theories, a kind of 1-3 orthogonal anisotropic PCM(OAPCM)sensor is developed, and the sensing principle is analyzed to describe sensor behaviors. In order to determine strain and stress on isotropic or orthogonal anisotropic component surface, the relationships between strain and stress are established. The experimental research on 1-3 OAPCM sensor is carried out in uniaxial and biaxial stress states. The results show that 1-3 OAPCM sensors offer orthotropic properties of piezoelectricity, and sensing equations can be used for strain or stress measurement with good accuracy.

References:

[1] Newnham R E.Skinner D P, Cross L E, et al. Connectivity and piezoelectric-pyroelectric composites [J]. Mater Res Bull, 1978(13):525-536.
[2] Wan Jianguo. Study and development of piezoelectric composite for its applications on intelligent material & structure[D]. Nanjing: The Key Laboratory for Smart Materials and Structures, Nanjing University of Aeronautics and Astronautics, 1997.
[3] Zhu Fujin, Tao Baoqi. Modification for the transverse sensitivity of strain gages in stress measurement of orthotropic composites[J]. Journal of Experimental Mechanics, 1998, 13(1):115-119.
[4] Luo Ying, Sun S T, Xu H X, et al. Research on orthogonal anisotropic PCM sensors used in civil engineering[A]. In: Huang Sanglian, ed. Proc of International Conference on Health Monitoring of Civil Infrastructure Systems [C]. Chongqing: Chongqing University Press, 1999.188-193.

Memo

Memo:

* The project supported by the National Natural Science Foundation of China(10072026), Jiangsu Science Foundation(BK2001213)and Aeronautics Science Foundation(01I52056).
** Born in 1960, graduate, associate professor.

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