Damage model for ferroelectric materials and its applications to multilayer actuators |
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| Authors: | Roman Gellmann Andreas Ricoeur |
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| Institution: | Institute of Mechanics, Department of Mechanical Engineering, University of Kassel, D-34125 Kassel |
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| Abstract: | In this paper a damage model for ferroelectric materials is presented. It is implemented in terms of a user element in the commercial FEM-code Abaqus. The model is based on micromechanical considerations of domain switching and its interaction with microcrack growth and coalescence. Finite element analysis of a multilayer actuator is performed, showing principal stresses leading to crack initiation and damage of the actuator. (© 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) |
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