[1] Chen Fanxiu, Cong Yuqi, Lin Baoping, et al. New method for measuring high field electrostrictive responseof barium titanate/polyurethane elastomer [J]. Journal of Southeast University (English Edition), 2006, 22 (1): 88-92. [doi:10.3969/j.issn.1003-7985.2006.01.019]

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New method for measuring high field electrostrictive responseof barium titanate/polyurethane elastomer()

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

Volumn:

22

Issue:

2006 1

Page:

88-92

Research Field:

Mathematics, Physics, Mechanics

Publishing date:

2006-03-20

Info

Title:

New method for measuring high field electrostrictive responseof barium titanate/polyurethane elastomer

Author(s):

Chen Fanxiu¹;  2;  Cong Yuqi³;  Lin Baoping³;  Li Jianqing⁴;  He Xiaoyuan¹;  2

¹Department of Engineering Mechanics, College of Civil Engineering, Southeast University, Nanjing 210096, China
²Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, China
³Departm

Keywords:

digital speckle correlation method;  electrostrictive response;  barium titanate/polyurethane elastomer composite material;  electrostrictive strain

PACS:

O348

DOI:

10.3969/j.issn.1003-7985.2006.01.019

Abstract:

A new method for measuring the characteristic of electrostriction by a digital speckle correlation method(DSCM)is presented. The in-plane displacement is obtained by using the DSCM, and the out-plane displacement is obtained by the geometrical relation of the triangle theory. In this application, high field electrostrictive strains of barium titanate/polyurethane elastomer composite materials are measured. The electrostrictive strain is evaluated when the application of an electric field is repeated, and then the electrostrictive coefficient of the sample is obtained. To improve the measuring accuracy, the bilinear interpolation of gray value is used to obtain the sub-pixel gray value. The results are compared with those obtained from the surface fitting algorithm. The experimental results demonstrate that the electrostrictive response of polyurethane increases with the introduction of barium titanate into polyurethane. And by using the DSCM, the measurement of the characteristic of electrostriction can be done quickly and accurately. The DSCM provides an effective tool for the evaluation of electrostrictive response.

References:

[1] Husic’ S, Javni I, Petrovic’ Z S.Thermal and mechanical properties of glass reinforced soy-based polyurethane composites [J].Composites Science and Technology, 2005, 65(1):19-25.
[2] Cheng Z Y, Bharti V, Xu T B, et al.Electrostrictive poly(vinylidene-uoride-tri-uoroethylene)copolymers [J].Sensors and Actuators A, 2001, 90(1, 2):138-147.
[3] Lu Xiaoyan, Schirokauer Adriana, Scheiribcim Jcrry.Giant electrostrictive response in poly(viny1idene fluoride-hexafluoropropylene)copolymers [J].Ultrasonics, Ferroelectrics and Frequency Control, 2000, 47(6):1291-1295.
[4] Guillota Francois M, Jarzynski Jacek.Measurement of electrostrictive coefficients of polymer films [J].Acoustical Society of America, 2001, 110(6):2980-2990.
[5] Jin G C, Wu Z, Bao N K, et al.Digital speckle correlation method with compensation technique for strain measurements [J].Optics and Lasers in Engineering, 2003, 39(4):457-464.
[6] Hinsch K D, Fricke B T, Gulker G, et al.Speckle correlation for the analysis of random processes at rough surface [J].Optics and Lasers in Engineering, 2000, 33(2):87-105.
[7] Zhang Jun, Jin Guanchang, Ma Shaopeng, et al.Application of an improved subpixel registration algorithm on digital speckle correlation measurement [J].Optical & Laser Technology, 2003, 35(7):533-542.
[8] Udrea D D, Bryanston-cross P J, Lee W K, et al.Two sub-pixel processing algorithms for high accuracy particle center estimation in low seeding density particle image velocimetry [J].Optical & Laser Technology, 1996, 28(5):389-396.
[9] Wang Chenying, He Xiaoyuan.Curved surface approximation in correlation recognition method [J].Journal of Experimental Mechanics, 2000, 15(3):280-285.(in Chinese)
[10] Asi K, Inoue S, Kojima K, et al.The electric field strain-electrostrictive response of polyurethane elastomers[J]. Kobunshi Ronbunshu, 1999, 56(2):68-76.(in Japanese)

Memo

Memo:

Biographies: Chen Fanxiu(1979—), female, graduate;He Xiaoyuan(corresponding author), male, doctor, professor, mmhxy@seu.edu.cn.

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