Editor's Note: This article is part of the ET Feature Series on Nanomechanical Characterization of Materials by Nanoindentation (instrumented indentation testing) which lends itself to testing small volumes of material. This series features articles describing the main experimental technique(s), background theory and data reduction, testing of polymers and low-k thin films. Additionally, most recent developments in these techniques will be addressed throughout the series. Series editor: Ibrahim Miskioglu, Michigan Technological University.
Measuring the Complex Modulus of Polymers by Instrumented Indentation Testing
Article first published online: 14 APR 2011
© 2011, Agilent Technologies. Experimental Techniques (2011) © 2011, Society for Experimental Mechanics
Volume 37, Issue 3, pages 55–61, May/June 2013
How to Cite
Hay, J. and Herbert, E. (2013), Measuring the Complex Modulus of Polymers by Instrumented Indentation Testing. Experimental Techniques, 37: 55–61. doi: 10.1111/j.1747-1567.2011.00732.x
- Issue published online: 1 MAY 2013
- Article first published online: 14 APR 2011
- Received: August 12, 2010; accepted: January 11, 2011
- Dynamic Testing;
- Instrumented Indentation;
- Time-Dependent Materials;
Instrumented indentation is used to measure the complex modulus of highly plasticized polyvinyl chloride (HP-PVC) and four kinds of polyethylene over the frequency range of 1-50Hz. Over this range, the loss factor for the HP-PVC increases from 0.3 to 1, making this an ideal material for damping out noise and vibration. The storage moduli for the four polyethylene samples are ordered according to density, with the lowest-density material have the lowest storage modulus. Results for both storage modulus and loss factor compare well with published results obtained by dynamic mechanical analysis for nominally similar materials.