Home
Resource
Numerical study of the piezoelectric and dielectric properties of PZT-EPOXY composites as a function of curing process
PDF
PDF format is widely accepted and good for printing.
Plug-in required
PDF-1(10.54 MB)
Citation & Export
View Usage Statistics
Staff View

Citation & Export
Hide

Simple citation

Wang, Rui. Numerical study of the piezoelectric and dielectric properties of PZT-EPOXY composites as a function of curing process. Retrieved from https://doi.org/doi:10.7282/t3-r9pe-fa52

Export

Click here for information about Citation Management Tools at Rutgers.

Statistics
Hide

Description

TitleNumerical study of the piezoelectric and dielectric properties of PZT-EPOXY composites as a function of curing process
NameWang, Rui (author); Cook-Chennault, Kimberly (chair); Baruh, Haim (internal member); DeMauro, Edward (internal member); Lesley, Berhan (outside member); Rutgers University; School of Graduate Studies
Date Created2019
Other Date2019-05 (degree)
SubjectNumerical study, Mechanical and Aerospace Engineering, Piezoelectricity, Curing
Extent1 online resource (xxxiii, 313 pages) : illustrations
DescriptionIn this study, simulation of the piezoelectric and dielectric properties of the PZT-5A and epoxy DGEBA piezoelectric composites is interested. The deformation of the samples will be caused by the thermal expansion and the shrinkage of the geometry by curing process when heat transfer happened in the samples during the time. Thus, the electric charges will be generated by the composites due to the material properties of piezoelectric materials. Comsol Multiphysics 5.3a and Matlab Live Link 2016a are used to do the simulation of temperature distribution in the two-phase (Epoxy (DGEBA)-lead zirconate titanate (Pb[Zr_xTi_(1-x)]O_3(0▁(<)x▁(<)1) composites structures. Thermal stress (including Solid mechanics and Heat transfer in solid), electrostatics physics were used to generate the models. Curing process of the epoxy matrix will be shown in the simulation at 75C. Non-cured epoxy was used for the epoxy with epoxy hardener as the curing agent and PZT-5A was chosen for piezoelectric materials. The dimension for PZT-5A is 5µm to 8 µm for diameters. Three kinds of the geometry of samples were considered in the simulation models, bulk models, planar models, and dome shape models. The dimensions for bulk samples are 1.4cm in thickness and 0.6cm in width. Dimension for planar models is 0.02cm for the thickness and 2.54cm for the width. Dimension for dome-shape models is 2.54cm for the length and 0.508cm in height and 0.02cm in thickness. The models were made as 2D models. Pure epoxy resin models and pure PZT-5A models were generated. For the composites, the volume fraction of PZT is from 10%,20%,30% to 70%. Rest of the material is epoxy. Boundary conditions for heat transfer in solid were considered as heat convection and surface radiation. And there is fixed temperature 75C applied at the bottom of the models. Since the PZT particles are very small, it is impossible to generate huge amounts of particles for the volume fractions need in the model because the computer cannot run this. In order to solve this problem, the unit cell method and the scaled method were used. The results for temperature, stress-strain, displacement, voltage, and capacitance were generated by the models. The curing process of epoxy was shown as well. Piezoelectric strain coefficient d_33 and dielectric constant were calculated and compared to the experimental results. PZT particle floating during the curing process was compared with the scanning electron microscopy (SEM) images.
NotePh.D.
NoteIncludes bibliographical references
Genretheses, ETD doctoral
Persistent URLhttps://doi.org/doi:10.7282/t3-r9pe-fa52
LanguageEnglish
CollectionSchool of Graduate Studies Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.
Version 8.5.5
Rutgers University Libraries - Copyright ©2024