Modelling of nanomaterials – sensitivity analysis to determine the nanoindentation test parameters

by

Modelling of nanomaterials – sensitivity analysis to determine the nanoindentation test parameters

Magdalena Kopernik, Danuta Szeliga

Department of Modelling and Information Technology, Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Poland.

DOI:

https://doi.org/10.7494/cmms.2007.2.0152

Abstract:

Analysis of nanomaterials is challenging in modeling and in experiments. Due to many difficulties in measuring their properties and a large scatter in results, there is a necessity to use computational methods to obtain better data. Thin film is applied in this paper to model the nanoindentation test and finally to predict the force-depth curve. The nanoindentation test with round tip indenter is simulated and remeshing problem is solved in the program. Numerical graph representing force versus depth, which is an output from the program, is performed to optimize deformation process. Sensitivity analysis is a numerical method used here, which is set in the present work to determine parameters in the deformation process in nanoindentation test and to specify the influence of elastic material model on the test results.

Cite as:

Kopernik, M., Szeliga, D., (2007). Modelling of nanomaterials – sensitivity analysis to determine the nanoindentation test parameters. Computer Methods in Materials Science, 7(2), 255 – 261. https://doi.org/10.7494/cmms.2007.2.0152

Article (PDF):

Keywords:

Nanoindentation test, Sensitivity analysis, Finite element method (FEM)

References:

Beake, B.D., Lau, S.P., 2005, Nanotribological and nanomechanical properties of 5–80 nm tetrahedral amorphous carbon films on silicon, Diamond and Related Materials, 14, 1535–1542.

Chollacoop, N., Dao, M., Suresh, S., 2003, Depth-sensing instrumented indentation with dual sharp indenters, Acta Mater., 51, 3713–3729.

Dao, M., Chollacoop, N., Vliet, K.J., Venkatesh, T.A., Suresh, S., 2001, Computational modeling of the forward and reverse problems in instrumented sharp indentation, Acta Mater., 9, 3899–3918.

Kopernik, M., Pietrzyk, M., 2006, Modelling of nanocoatings under working conditions, Proc. XXXIV SIM, Krynica, 383-392 (in Polish).

Kopernik, M., Pietrzyk, M., 2007a, Rheological model and mechanical properties of hard nanocoatings in numerical simulation of nanoindentation test, Proc. 10th ESAFORM Conf., Zaragoza, (in press).

Kopernik, M., Pietrzyk, M., 2007b, 2D numerical simulation of elasto – plastic deformation of thin hard coating systems in deep nanoindentation test with sharp indenter, Arch. Metall. Mater., (submitted for publication).

Oliver, C., Pharr, G.M., 1992, An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiment, J. Mater. Res., 7, 1564-1583.

Szeliga, D., Pietrzyk, M., 2002, Identification of rheological and tribological parameters, in: Metal forming science and practice, ed., Lenard, J.G., Elsevier, Amsterdam, 227-258.