Work

On Experimental Determination of Gradient Coefficient

Year: 2003

Type: article

Abstract: A simple, direct method to measure the value of the gradient coefficient is discussed.Since the gradient term in gradient theories of plasticity and elasticity accounts for the heterogeneity of deformation, it is possible to estimate the non-standard gradient coefficient through a simple inhomogeneous deformation field.Pure bending tests of rectangular beams made of high purity aluminum (>99.5%) with a grain size gradient were thus designed and conducted.By measuring the curvature of the deformed beam, the gradient coefficient can be directly determined.

Source: Journal of the Mechanical Behavior of Materials

DOI: 10.1515/jmbm.2003.14.4-5.271

Authors: B.R. Murphy,, I.E. Eleftheriadis,, J. Ning,, W. Milligan,, E.C. Aifantis,

Institutions: Aristotle University of Thessaloniki, Michigan Technological University

Language: English

Topic: Nonlocal and gradient elasticity in micro/nano structures

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $848

Funder: National Science Foundation