Format

Send to

Choose Destination
Proc Math Phys Eng Sci. 2016 Nov;472(2195):20160659.

Small-on-large geometric anelasticity.

Author information

1
School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta, GA 30332, USA.
2
School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.

Abstract

In this paper, we are concerned with finding exact solutions for the stress fields of nonlinear solids with non-symmetric distributions of defects (or more generally finite eigenstrains) that are small perturbations of symmetric distributions of defects with known exact solutions. In the language of geometric mechanics, this corresponds to finding a deformation that is a result of a perturbation of the metric of the Riemannian material manifold. We present a general framework that can be used for a systematic analysis of this class of anelasticity problems. This geometric formulation can be thought of as a material analogue of the classical small-on-large theory in nonlinear elasticity. We use the present small-on-large anelasticity theory to find exact solutions for the stress fields of some non-symmetric distributions of screw dislocations in incompressible isotropic solids.

KEYWORDS:

anelasticity; defects; geometric mechanics; nonlinear elasticity; residual stress

Supplemental Content

Full text links

Icon for PubMed Central
Loading ...
Support Center