JOM Editorial Calendar - Topic Details

Quantifying Rate Sensitive Deformation Measured from Continuous Indentation

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Guest Editor: A.A Elmustafa
Co-Guest Editors: D.S Stone
,
Sponsored By: Other-Invited
Publication Date: June 2024
Keywords: Mechanical Properties, Modeling and Simulation, Nanoindentation; Rate Sensitive Deformation
Scope: For over half a century, materials scientists have employed instrumented indentation as a way of characterizing rate sensitive deformation. They have experimented with a variety of indenters including cones, cylindrical punches, spheres, and pyramids, all of which provide different information; and they have used the methods to measure high-temperature creep and low-temperature creep, and viscoplasticity and viscoelasticity in polymers. Experimental methods and theoretical treatments have steadily improved to the point where it is possible to generate the equivalent of (uniaxial) flow stress-strain rate data from sub-micrometer volumes using indentation across a wide range of strain rate and temperature.