| Sign In to gain access to subscriptions and/or personal tools. |
A FSDT—MITC Piezoelectric Shell Finite Element with Ferroelectric Non-linearityLEMTA, Nancy University, CNRS, 2 rue Jean Lamour, 54500 Vandoeuvre les Nancy, France
LEMTA, Nancy University, CNRS, 2 rue Jean Lamour, 54500 Vandoeuvre les Nancy, France, tarak.ben-zineb{at}esstin.uhp-nancy.fr
Institut Supérieur de Mécanique de Paris, LISMMA-Structures, 3 rue Fernand Hainault, 93407 Saint Ouen Cedex, France A shell finite element based on the Reissner/Mindlin first-order shear deformation theory and integrating a bi-dimensional phenomenological ferroelectric constitutive law for domain switching effects is proposed. An electric switching function is considered to indicate the onset of domain switching. Only one internal variable (the remanent polarization) is used in the model. An implicit integration technique based on the return-mapping algorithm is adopted. The shell element is implemented into the commercial finite element code Abaqus ® via the subroutine user element. Some linear (piezoelectric) and non-linear (ferroelectric) tests are considered to validate first, the element formulation and second, the implementation of the bi-dimensional ferroelectric model. It is shown by studying a complex example (the spiral actuator) that the Reissner/Mindlin kinematic hypothesis (no variation of the displacement across the thickness or no thickness variation) is not sufficient for some electromechanical applications for which the d33 effect is of major importance.
Key Words: ferroelectricity piezoelectricity shell finite element.
This version was published on November
1, 2009 Journal of Intelligent Material Systems and Structures, Vol. 20, No. 17,
2055-2075 (2009) |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||