Abstract
AbstractIn this paper we consider and compare special classes of static theories of gradient elasticity, nonlocal elasticity, gradient micropolar elasticity and nonlocal micropolar elasticity with only one gradient coefficient. Equilibrium equations are presented but higher‐order boundary conditions are not of concern here, since they are not required for the problems considered. The connection between gradient theory and nonlocal theory is discussed for elasticity as well as for micropolar elasticity. Nonsingular solutions for the elastic fields of screw and edge dislocations are given. Both the elastic deformation (distortion, strain, bend‐twist) and the force and couple stress tensors do not possess any singularity unlike ‘classical’ theories. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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