A comparison of 3D finite element simulations for Berkovich and conical indentation of fused silica Academic Article

abstract

• 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.

authors

• Pharr, George

published proceedings

• 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

publication date

• January 2007

published in

• International Journal of Surface Science and Engineering  Journal

start page

• 259

end page

• 273

volume

• 1

issue

• 2-3