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The bending effect of piezoelectric quartz is investigated by the theories of elasticity and electromagnetism. First the bending stress is deduced using mechanics of material. According to piezoelectric equation the volume and surface bound charge densities by bending are calculated. Using Finite Element Method, the distribution of the electric field in quartz bar is simulated. Based on the theoretical...
The bending effect of a piezoelectric quartz beam under uniformly distributed load is studied. First according to the anisotropic elasticity, the differential equation in the form of plane stress function is obtained, and then the bending stress components are calculated. By the piezoelectric equation the polarization is obtained. By means of the electrostatic theory in the presence of matter the...
In order to control the bending motion of poly-L-lactic acid (PLLA) fiber, which is one type of chiral polymer, caused by its shear piezoelectricity upon applying electric field, we simulated the electric field distribution in the PLLA fiber by a finite-element method. As a result, we found that the electric field distribution depends strongly on the distance between the electrodes on the surface...
The bending effect of a piezoelectric quartz beam is first investigated in the paper. According to the anisotropic elasticity and Maxwell electromagnetic theory, the stress field and electrostatic field is deduced. The distribution of the electric field in the piezoelectric beam is calculated by the Finite Element Method. Based on the theoretical analysis of the bound charge distribution, using the...
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