A Micro-Electromechanics Model for the 3-D PFRC Materials

Abstract

A micro-electromechanics model is proposed for predicting the effective electroelastic and thickness electromechanical coupling constants of 3-D piezoelectric fiber reinforced composite (PFRC) materials. A numerical study is carried out to investigate the effects of some geometrical parameters and composite constituent properties on the effective constants for 3-D PFRC materials. Choosing the optimal PFRC microstructure parameters and composite constituents using the present model can optimize the 3-D PFRC material performance. The comparison between the predicted results of 3-D PFRC materials and the existing experimental results of the 3-3 connectivity Pz34/PVDF piezoelectric composite is conducted. A good agreement exists for the dielectric constant " 33/" o, however a discrepancy is noted for the thickness electromechanical coupling constant Kt.

Keywords

micro-electromechanics model electroelastic constants 3-D piezoelectric fiber reinforced composite (PFRC) materials thickness electromechanical coupling constant

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References

1. Rittenmeyer, K. , Shrout, T. , Shulze, W.A. and Newnham, R.E. (1982). Ferroelectrics, 41: 189–195.

2. Levassort, F. , Lethiecq, M. , Desmare, R. and Tran-Huu-Hue, L.P. (1999). IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 46: 1028–1034.

3. Banno, H. , (1995). Proceedings IEEE. ISAF, pp. 186–189.

4. Levassort, F. , Lethiecq, M. , Millar, C. and Pourcelot, L. (1998). Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 45: 1497–1504.

5. Newnham, R.E. , Skinner, D.P. and Cross, L.E. (1978). Mater. Res. Bull., 13: 525–536.

6. Hagood, N.W. and Bent, A.A. (1993). AIAA Paper No. 93-1717. In: Proceedings of the 34th AIAA Structures, Structural Dynamics, and Materials Conference. pp. 3625–3638.

7. Bent, A.A. , Hagood, N.W. and Rodgers, J. (1995). Journal of Intelligent Material Systems and Structures, 6: 338–349.

8. Chee, C. , Tong, L. and Steven, G.P. (1998). Journal of Intelligent Material Systems and Structures, 9: 3–19.

9. Tan, P. , Tong, L. and Steven, G.P. (1998). Journal of Reinforced Plastics and Composites, 17: 545–577.

10.

10. Tan, P. , Tong, L. and Steven, G.P. (1997). Composite Structures, 38: 261–271.

11.

11. ANSI/IEEE Std . 176-1987, IEEE Standard on Piezoelectricity, The Institute of Electrical and Electronics Engineers, Inc., New York, USA, 1987.

12.

12. Tan, P. and Tong, L. accepted for publication in Composite Science and Technology.

13.

13. Chan, H.L.W. and Unsworth, J. (1989). IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 36: 434–441.

14.

14. Ha, S.K. , Keilers, C. and Chang, F.K. (1992). AIAA Journal, 30: 772–780.