TY - GEN
T1 - Theoretical analysis of dynamic properties of 2-2 cement based piezoelectric composite
T2 - 12th International Conference on Engineering, Science, Construction, and Operations in Challenging Environments - Earth and Space 2010
AU - Zhang, T. T.
AU - Shi, Z. F.
PY - 2010
Y1 - 2010
N2 - Cement based piezoelectric composites have not only low frequency, but also good compatibility with the concrete, which is perfect for measuring the properties of the civil engineering structures. However, up till now there have been only a few literatures dealing with the theoretical analysis of cement based piezoelectric composite, especially for the 2-2, 0-3 and 1-3 cement based types. In the second part of this study, an analytical model was established for the dynamic properties of 2-2 cement based piezoelectric actuator based on the existing experimental investigations. The actuator consists of N piezoelectric layers and N+1 cement layers alternately. Then, by using the displacement method, the exact solutions of the components of the displacement and stress were obtained for each piezoelectric layer and cement layer, respectively, in the third part. The forth part of the study is focused on comparisons and discussions with the existing experiments. It was found that the magnitude of the strain amplitude of the cement layer and its changing trend with the external frequency were consistent with the experimental results, which also holds true for the load generated by the actuator. Besides, other conclusions of this actuator were given. The influence of the frequency on the displacement and potential of the piezoelectric layer were also discussed. The analytical model established in this paper could benefit the design of the related smart devices.
AB - Cement based piezoelectric composites have not only low frequency, but also good compatibility with the concrete, which is perfect for measuring the properties of the civil engineering structures. However, up till now there have been only a few literatures dealing with the theoretical analysis of cement based piezoelectric composite, especially for the 2-2, 0-3 and 1-3 cement based types. In the second part of this study, an analytical model was established for the dynamic properties of 2-2 cement based piezoelectric actuator based on the existing experimental investigations. The actuator consists of N piezoelectric layers and N+1 cement layers alternately. Then, by using the displacement method, the exact solutions of the components of the displacement and stress were obtained for each piezoelectric layer and cement layer, respectively, in the third part. The forth part of the study is focused on comparisons and discussions with the existing experiments. It was found that the magnitude of the strain amplitude of the cement layer and its changing trend with the external frequency were consistent with the experimental results, which also holds true for the load generated by the actuator. Besides, other conclusions of this actuator were given. The influence of the frequency on the displacement and potential of the piezoelectric layer were also discussed. The analytical model established in this paper could benefit the design of the related smart devices.
KW - Cement
KW - Intelligent structures
KW - Smart materials
UR - https://www.scopus.com/pages/publications/78649256062
U2 - 10.1061/41096(366)296
DO - 10.1061/41096(366)296
M3 - 会议稿件
AN - SCOPUS:78649256062
SN - 9780784410967
T3 - Proceedings of the 12th International Conference on Engineering, Science, Construction, and Operations in Challenging Environments - Earth and Space 2010
SP - 3111
EP - 3125
BT - Earth and Space 2010
Y2 - 14 March 2010 through 17 March 2010
ER -