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مجله بین المللی جامدات و سازه ها
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • exact three-dimensional analysis for static torsion of piezoelectric rods

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    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 924
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     based on the theory of elasticity, exact analytical and numerical solutions of piezoelectric rods under static torsion are studied. in this paper, direct solution method is used. the main scope is to check the extension of validity of assumptions in previous papers that had been made based on linear distribution of electric potential through the cross section and their influences on deflection and the angle of rotation. stress and electric induction functions are employed to obtain the exact solution of the static and electrostatic equilibrium equations under torsional loading. it is shown that previous assumptions are valid only in some types of piezoelectric materials, while in other types these assumptions lead to considerable deviations from accurate modeling. the present analytical solutions are compared with three-dimensional finite element analysis results and absolute agreements are found. at the end of this article, torsional rigidity, shape-effects on induced piezoelectric deformation and the range of valid region for linear distribution of electric potential assumption have been studied.

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