A stress-driven local-nonlocal mixture model for Timoshenko nano-beams
作者： S. Ali Faghidian , Raffaele Barretta , Carlo Maria Medaglia , Raimondo Luciano , Francesco Marotti de Sciarra
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摘要: A well-posed stress-driven mixture is proposed for Timoshenko nano-beams. The model a convex combination of local and nonlocal phases circumvents some problems ill-posedness emerged in strain-driven Eringen-like formulations structures nanotechnological interest. part the integral convolution between stress field bi-exponential averaging kernel function characterized by scale parameter. equivalent to differential problem equipped with constitutive boundary conditions involving bending shear fields. Closed-form solutions nano-beams selected loading are established an effective analytical strategy. numerical results exhibit stiffening behavior terms
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