Three-dimension finite element analysis on coupling effect of piezoelectric ceramics in concrete slabs under the concentrated load

Chen Qu

doi:10.1117/12.841915

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20 October 2009 Three-dimension finite element analysis on coupling effect of piezoelectric ceramics in concrete slabs under the concentrated load

Chen Qu

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Proceedings Volume 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering; 749371 (2009) https://doi.org/10.1117/12.841915
Event: Second International Conference on Smart Materials and Nanotechnology in Engineering, 2009, Weihai, China

Abstract

The piezoelectric ceramic has been one of structures extensively applied. Due to the complexity in its boundary condition and its stress state, the relevant researches on these carried out in traditional experimental ways have shown inefficiency and limitations. In view of this, the paper studies the piezoelectric ceramic's boundary condition and its stress state by setting up the three dimension finite models of piezoelectric ceramics in concrete slabs. The computer simulations are conducted. In the simulation, varied concentrated loads are applied and different buried depths of piezoelectric ceramics are considered. The block elements are adopted to simulate the concrete slabs, while the plane elements are used for the piezoelectric ceramics. Firstly, the stress distribution of the concrete slabs and that of the piezoelectric ceramics in slabs are derived from the computer nonlinear solver. Then piezoelectric properties of the piezoelectric ceramics in the stress field are simulated. And the equivalent circuit parameters of the piezoelectric ceramics under the varied concentrated loads are obtained. The results of the analysis show that three dimension finite element analysis is a convenient and reliable tool for studies on the coupling effect of piezoelectric ceramics in concrete slabs. The study offers references for the further three dimension finite element analysis on concrete structure stress monitoring with the use of piezoelectric ceramics in concrete slabs.

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Chen Qu "Three-dimension finite element analysis on coupling effect of piezoelectric ceramics in concrete slabs under the concentrated load", Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 749371 (20 October 2009); https://doi.org/10.1117/12.841915

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