Figure 16: Hyperboloid piezoelectric polymer. Contour plot of the electric potential ϕ for the proposed shell formulation. Results obtained for a value of the surface load per unit undeformed area of q = λ×(16×106)Pa, with (a) λ = 0.0065; (b) λ = 0.0221; (c) λ = 0.0716; (d) λ = 0.25; (e) λ = 0.664; (f) λ = 1. Constitutive model in (58). Finite Element discretisation of 64 × 27 elements. CBC approach for ϕ and γ with ns = 1 (47). Number of dofs for {x0,v, ϕ, γ, p, λ} of {3× 7095, 3× 1820, 3× 7095, 1× 1728, 1× 1728, 1820}.
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