期刊
COMPUTATIONAL MECHANICS
卷 50, 期 2, 页码 229-244出版社
SPRINGER
DOI: 10.1007/s00466-012-0715-9
关键词
Homogenization; FE2-method; Effective properties; Electromechanical coupling; Piezoelectricity; Electrostriction
资金
- Deutsche Forschungsgemeinschaft (DFG) [1 (SCHR 570/12-1)]
The contribution addresses a direct micro-macro transition procedure for electromechanically coupled boundary value problems. The two-scale homogenization approach is implemented into a so-called FE2-method which allows for the computation of macroscopic boundary value problems in consideration of microscopic representative volume elements. The resulting formulation is applicable to the computation of linear as well as nonlinear problems. In the present paper, linear piezoelectric as well as nonlinear electrostrictive material behavior are investigated, where the constitutive equations on the microscale are derived from suitable thermodynamic potentials. The proposed direct homogenization procedure can also be applied for the computation of effective elastic, piezoelectric, dielectric, and electrostrictive material properties.
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