[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^*()

1-3型正交异性压电复合材料传感元件的研究

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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^*

1-3型正交异性压电复合材料传感元件的研究

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

熊克¹;  张为公²;  骆英³

¹南京航空航天大学智能材料与结构航空科技重点实验室, 南京 210016; ²东南大学仪器科学与工程系, 南京 210096; ³江苏大学工程力学研究所, 镇江 212013

Keywords:

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

1-3型压电复合材料;  正交异性;  传感元件;  应变-应力关系

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.

压电复合材料是一种重要的、具有广阔应用前景的传感和驱动材料.本文在压电材料基本理论、复合材料设计方法和实验力学的基础上, 构造了一种1-3型正交异性压电复合材料传感元件, 探讨了它的传感原理, 推导了该种元件的传感方程和用于各向同性材料/正交各向异性材料构件表面测量的应力-应变关系, 并在单向和双向应力状态下, 进行了实验研究.结果表明:1-3型正交异性压电复合材料传感元件可应用于构件表面上某一方向的应变测量, 并具有较高的准确性.

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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