Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Viscoelastic Characterization of Polymers Using Instrumented Indentation I. Quasi-static Testing

Published

Author(s)

Mark R. VanLandingham, N-K Chang, P L. Drzal, Christopher C. White, S-H Chang

Abstract

The use of instrumented indentation to characterize the mechanical response of polymeric materials was studied. A model based on contact between a rigid probe and a linear viscoelastic material was used to calculate values for creep compliance and stress relaxation modulus for two crosslinking polymeric materials, an epoxy and poly(dimethyl siloxane) or PDMS. The use of a rounded conical tip and sharp pyramidal tips produced linear and nonlinear responses from these two polymers depending on tip shape and load level. Results from bulk rheometry studies were used for comparison to the indentation creep and stress relaxation results.
Citation
Journal of Materials Research
Volume
43
Issue
14

Keywords

creep, mechanical propeties, mechanical response, modulus, nanoindentation, polymer

Citation

VanLandingham, M. , Chang, N. , Drzal, P. , White, C. and Chang, S. (2005), Viscoelastic Characterization of Polymers Using Instrumented Indentation I. Quasi-static Testing, Journal of Materials Research, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=860507 (Accessed April 20, 2024)
Created July 12, 2005, Updated October 12, 2021