• constitutive structure in coupled non-linear electro-elasticity: invariant descriptions and constitutive restrictions

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 789
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a constitutive framework for electro-sensitive materials in the context of non-linear elasticity is analyzed. constitutive equations are given in terms of energy functions that depend on several invariants. the study includes both the analysis of the invariants, which are present in the energy functions, and the analysis of constitutive restrictions that have to be obeyed by the constitutive functions. isotropic as well as non-isotropic electro-sensitive elastomers are studied. the set of invariants that describe each material model is analyzed under two homogeneous deformations: (i) an uniaxial elongation and (ii) a simple shear deformation. these deformations are chosen since they are relevant to specific experiments, from which one may try to fit constitutive equations. the constitutive restrictions developed are based on classical ones used for isotropic non-linear elastic materials, in particular, are based on the baker–ericksen inequality and the ellipticity condition.

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