Makine Teknolojileri Elektronik Dergisi

Son Sayı Arşiv
Article Name Formulation of the Lineer Constitutive Equations of Termoelastic Piezoelectric Materials
Author Name Melek USAL
Address Süleyman Demirel Üniversitesi, Teknik Eğitim Fakültesi, Makine Eğitimi Bölümü, Isparta
Abstract In this study, the linear behavior of a thermoelastic and piezoelectric material under electromechanical loading has been systematically analyzed. The material has a thermoelastic and piezoelectric anisotropy. Compressibility of the medium is accepted because of that material has piezoelectric feature. Basic principles of modern continuum mechanics and balance equations of Electrostatic have provided guidance and have been determining in the process of this study. As a result of thermodynamic constraints, it has been determined that the stress potantional is dependent on a symmetric tensor and a vector whereas the heat flux vector function is dependent on a symmetric tensor and two vectors. Constitutive functions have been represented by a power series expansion and the type and number of terms taken into consideration in this series expansion has determined the linearity of the medium. The linear constitutive equations of the stress, polarization and heat flux vector are substituted in equation Coulomb-Gauss Law, in Cauchy’s equation of motion and energy equation to obtain the field equations. Key Words: Field equations, anisotropy, linear constitutive equations, balance equations, piezoelectric, polarization, stress, heat flux vector, linear thermoelasticity.
Published in Electronic Journal of Machine Technologies
Issue 7
Volume 1
Pages 13-30
Year 2010
Type Paper
Language Turkish
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