کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10620893 | 988724 | 2007 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electromechanical response of 1-3 piezoelectric composites: An analytical model
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
An analytical model that captures the complete electromechanical response of a 1-3 piezoelectric composite system where both the matrix and fiber phases are, in general, elastically anisotropic and piezoelectrically active is developed. Upon identifying 36 classes of 1-3 composites based on the nature of the isotropy and the piezoelectric properties of the constituents, a detailed methodology for determining all the 45 independent material constants of a general 1-3 composite is presented. By comparing the predictions of the analytical model with that of a finite element model for a range of composite materials, it is demonstrated that the composite material properties in the longitudinal direction (i.e., C33, κ33 and ε33) are well predicted by the analytical model. However, as a consequence of the approximation introduced in the model formulation (where the fiber composite is modeled as a layered composite) the analytical model could significantly underpredict the composite material properties in the transverse direction (especially the dielectric properties, κ11 and κ22) for some (“matrix-dominant”) composite material systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 55, Issue 3, February 2007, Pages 1093-1108
Journal: Acta Materialia - Volume 55, Issue 3, February 2007, Pages 1093-1108
نویسندگان
Ronit Kar-Gupta, T.A. Venkatesh,