Exact Solutions for a Coupled Nonlocal Model of Nanobeams

摘要

Bernoulli-Euler nanobeams under concentrated forces/couples with the nonlocal constitutive behavior proposed by Eringen do not exhibit small-scale effects. A new model obtained by coupling the ERINGEN and gradient models is formulated in the present note. A variational treatment is developed by imposing suitable thermodynamic restrictions for nonlocal models and the ensuing differential and boundary conditions of elastic equilibrium are provided. The nonlocal elastostatic problem is solved in a closed-form for nanocantilever and clamped nanobeams.