Charge distribution in 0-3 piezoelectric composites by using ANSYS

The model of ceramic particles uniform distributed 0-3 piezoelectric ceramic/polymer composites was built by MATLAB software and simulated by the finite element analysis software ANSYS, and the internal stress distribution and charge distribution of the piezoelectric composites in static load were studied. The changes of the maximum voltage produced by piezoelectric ceramic in the composites with the changes of the concentration of the piezoelectric ceramic particle and the static load were also investigated. It shows that when the piezoelectric composites is in static load, the stress of the piezoelectric phase recieved is far greater than that of polymer phase. The edges of the piezoelectric phase recieve the highest stress and the most charge is produced. With the increase of the piezoelectric ceramic volume fraction in the composites, the maximum voltage of the piezoelectric ceramic/polymer composites increases. When the piezoelectric ceramic volume fraction is up to 30%, the maximum voltage is as high as 2.86×10^-5 V. With the increasing of the static load, the maximum voltage produced by piezoelectric composites increases linearly, and the damping effect is more obvious. The results show that the damping effect is in a good agreement with the published literature.