Abstract
This paper demonstrates a new displacement modulation technique for using a depth sensing nanoindentation instrument to measure the dynamic mechanical properties of viscoelastic materials. For testing low modulus, high damping polymeric materials, dynamic nanoindentation offers several advantages over quasi-static testing. In this research, a model for the dynamic response of the system is proposed and shown to match well with experimental observations. A new calibration procedure, which involves the use of a variable cantilever spring, is employed to determine the damping characteristics of the testing frame as a function of excitation frequency. Using the proposed procedure dynamic nanoindentation tests are carried out on a viscoelastic material to determine the storage and loss moduli as functions of excitation frequency. Finally, a comparison with results from conventional testing (DMA) is provided.
This is a preview of subscription content, access via your institution.
References
- 1.
J. L. Hay and G. M. Pharr, “Instrumented Indentation Testing,” ASM Handbook Vol. 8: Mechanical Testing and evaluation (10th ed.) edited by H. Kuhn and D. Medlin (AMS International, Materials Park, OH, 2000) pp.232–243.
- 2.
W. C. Oliver, G. M. Pharr, J. Mater. Res. 7, 1564 (1992).
- 3.
M. R. VanLandingham, J. S. Villarrubia, G. F. Meyers, “Nanoindentation of polymers: an overview,” (American Chemical Society, Polymer Preprints, Division of Polymer Chemistry 41, Washington, DC. Meeting, 2000) pp. 1412–1413.
- 4.
G. Feng and A. H. W. Ngan, J. Mater. Res. 17, 2604 (2002).
- 5.
A.H.W. Ngan and B. Tang, J. Mater. Res. Vol. 17, 660 (2002).
- 6.
L. Cheng, X. Xia, W. Yu, L. E. Scriven, W. W. Gerberich, Journal of Polymer Science: Part B: Polymer Physics, 38, 10 (2000).
- 7.
Xiaodong Li, Bharat Bhushan, Materials Characterization 48, 11 (2002)
- 8.
G.M. Odegard, T. Bandorawalla, H.M. Herring, and T.S. Gates, “Characterization Of Viscoelastic Properties Of Polymeric Materials Through Nanoindentation,” 2003 SEM Annual Conference and Exposition on Experimental and Applied Mechanics, June 2–4, 2003, Charlotte, NC.
- 9.
W.N. Unertl, “Viscoelastic effects in nanometer polymeric contacts,” Proceedings of the 1997 Boston Meeting 39 (1998) pp.1232–1233.
- 10.
N. A. Burnham, S. P. Baker, H. M. Pollock, J. Mater. Res. 15, 2006 (2000).
Acknowledgments
This material is based upon work supported by the U. S. Army Research Laboratory and the U. S. Army Research Office under contract/grant number DAAD19-02-1-0332.
Author information
Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Singh, S.P., Singh, R.P. & Smith, J.F. Displacement Modulation Based Dynamic Nanoindentation for Viscoelastic Material Characterization. MRS Online Proceedings Library 841, R4.6 (2004). https://doi.org/10.1557/PROC-841-R4.6
Published: