Bending control and stability of functionally graded dielectric elastomers
نویسندگان
چکیده
A rectangular plate of dielectric elastomer exhibiting gradients material properties through its thickness will deform inhomogeneously when a potential difference is applied to compliant electrodes on major surfaces, because each plane parallel the surfaces expand or contract different extent. Here we study voltage-induced bending response functionally graded basis nonlinear theory electroelasticity, both elastic shear modulus and electric permittivity change with coordinate. The illustrated for neo-Hookean electroelastic energy function varying linearly across thickness. In general angle increases difference, this enables inhomogeneity be tuned control shape. We derive Hessian criterion that ensures stability bent configurations in respect form constitutive law specialized considered geometry. This requires remains positive. For model show configuration stable until voltage reaches value which cross section forms complete circle.
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ژورنال
عنوان ژورنال: Extreme Mechanics Letters
سال: 2021
ISSN: ['2352-4316']
DOI: https://doi.org/10.1016/j.eml.2020.101162