A comparison of 3D finite element simulations for Berkovich and conical indentation of fused silica
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Much of our understanding of elastic-plastic contact mechanics as it relates to the interpretation of nanoindentation data comes from two-dimensional, axisymmetric finite element simulations of conical indentation. In many instances, conical results adequately describe real experimental results; however, there are instances where conical simulations fail to capture important behaviour. Three-dimensional finite element simulations of Berkovich triangular pyramidal indentation of fused silica are compared to similar simulations with a 70.3 cone. It is shown that a potentially significant difference between the two indenters exists for the contact areas and contact stiffnesses. Implications for the interpretation of nanoindentation data are discussed. 2007 Inderscience Enterprises Ltd.
International Journal of Surface Science and Engineering
author list (cited authors)
Shim, S., Shim, S., Oliver, W. C., Pharr, G. M., & Pharr, G. M.
complete list of authors
Shim, S||Shim, S||Oliver, WC||Pharr, GM||Pharr, GM