Numerical simulation of elastoplastic deformation of thin hard coating systems in nano-impact test

by

Numerical simulation of elastoplastic deformation of thin hard coating systems in nano-impact test

Magdalena Kopernik, Maciej Pietrzyk, Andrzej Żmudzki

AGH – University of Science and Technology, Kraków, Poland.

DOI:

https://doi.org/10.7494/cmms.2006.3.0167

Abstract:

Development of the finite element model of nano-impact tests is the objective of the paper. Although these tests are performed to determine, among others, the crack resistance of nanocoatings, there is no fracture criterion introduced in the model at this stage. Research is focused on overcoming various difficulties occurring in finite element simulation of deformation of thin hard coating systems. These difficulties arise from layers thickness, necessity of remeshing, multimaterial and multi-impact character of simulation, which has to connect different types of numerical solutions simultaneously. The simulations were performed using Forge 2 code adapted to the thin layer conditions. Problems with adaptation and scaling are described. Selected results of simulations are presented in the paper. Since it is capable to predict realistic stress and strain fields, the developed model is prepared to implementation of the fracture criterion

Cite as:

Kopernik, M., Pietrzyk, M., Żmudzki, A. (2006). Numerical simulation of elastoplastic deformation of thin hard coating systems in nano-impact test. Computer Methods in Materials Science, 6(3-4), 150 – 160. https://doi.org/10.7494/cmms.2006.3.0167

Article (PDF):

Keywords:

Hard coating system, FEM, Nano-impact test, Plastic deformation, FGM

References:

Beake, B.D., Lau, S.P., Smith, J.F., 2004, Evaluating the fracture properties and fatigue wear of tetrahedral amorphous carbon films on silicon by nano-impact testing, Surface and Coatings Technology, 177–178, 611–615.

Beake, B.D., Smith, J.F., 2004, Nano-impact testing – an effective tool for assessing the resistance of advanced wear-resistant coatings to fatigue failure and delamination, Surface and Coatings Technology, 188–189, 594–598.

Cai, X., Bangert, H., 1996, Finite-element analysis of the interface influence on hardness measurements of thin films, Surface Coatings Technology, 81, 240-255.

Chenot, J.L., Bellet, M., 1992, The Viscoplastic Approach for the Finite-Element Modelling of Metal Forming Processes, In,: Numerical Modelling of Material Deformation Processes, eds, Hartley, P., Pillinger, I., Sturges, C.E.N., Springer-Verlag, London, Berlin, 179-224.

Dao, M., Gu, P., Maewal, A., Asaro, R.J., 1997, A micromechanical study of residual stresses in functionally graded materials, Acta Mater., 45, 3265-3276.

Fang, T.-H., Jian, S.-R., Chuu, D.-S., 2004, Nanomechanical properties of TiC, TiN and TiCN thin films using scanning probe microscopy and nanoindentation, Applied Surface Science, 228, 365–372.

The FORGE® V.2.4 materials database, 2004, Transvalor SA, Sophia-Antipolis, France.

Hansel, A., Spittel, T., 1978, Krafts und Arbeitsbedarf Bildsamer Formgebungverfahren VEB Deutscher Verlay fűr Grundstoff Industrie, Leipzig.

Holmberg, K., Matthews, A., Ronkainen, H., 1998, Contact mechanism and surface design, Tribology International, 31, 1–3, 107–120.

Kopernik, M., Pietrzyk, M., 2006, Evaluation of possibilities and perspectives of application of nanomaterial hard coatings, Computer Methods in Materials Science, 6, 42-63.

Kopernik, M., Szeliga, D., 2007, Modelling of nanomaterials – inverse and sensitivity analysis to determine material parameters, Computer Methods in Materials Science, 7, 255-261.

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

Paszyński, M., Kopernik, M., Madej, Ł., Pietrzyk, M., 2006, Automatic hp adaptivity to improve accuracy of modeling of heat transport and linear elasticity problems, J. Machine Eng., 6, 73-82.

Santhanam, A.T., Quinto, D.T., Grab, G. P., 1996, Comparison of the steel-miling performance of carbide inserts with the MTCVD and PVD TiCN coatings, Int. J. of Refractory Metal and Hard Materials, 14, 31-40.

Zienkiewicz, O.C., Taylor, R.L., 2000, The Finite Element Method, Butterworth-Heinemann, Oxford.