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Numerical Simulation of the Depth-Sensing Indentation Test with Knoop Indenter [PDF]

open access: yesMetals, 2018
Depth-sensing indentation (DSI) technique allows easy and reliable determination of two mechanical properties of materials: hardness and Young’s modulus. Most of the studies are focusing on the Vickers, Berkovich, and conical indenter geometries. In case of Knoop indenter, the existing experimental and numerical studies are scarce.
J M Antunes   +2 more
exaly   +4 more sources

Shape Effects of Indenter on the Depth-Sensing Indentation

Advanced Materials Research, 2010
It is revealed that the conventional reduced modulus used in depth-sensing indentation tests is invalid for a flat-ended cylindrical indenter due to the fact that the contact area during the loading is a constant irrelative to load. The load-displacement curve of flat punch is related to the length of the punch and the ratio of the elastic modulus of ...
Xin Yong Shi, Li Zhong Liu, Yi Wang Bao
openaire   +1 more source

An indentation fatigue depth propagation law

Scripta Materialia, 2009
Using both experimental and numerical studies, we show that, upon cyclic indentation with a flat cylindrical indenter, the steady-state rate of indentation depth propagation can be well characterized by a simple power-law function of the stress intensity range and the maximum stress intensity, which is qualitatively similar to the steady-state growth ...
Xi Chen, Baoxing Xu
exaly   +2 more sources

Depth-sensing instrumented indentation with dual sharp indenters

Acta Materialia, 2003
A methodology for interpreting instrumented sharp indentation with dual sharp indenters with different tip apex angles is presented by recourse to computational modeling within the context of finite element analysis. The forward problem predicts an indentation response from a given set of elasto-plastic properties, whereas the reverse analysis seeks to
N. Chollacoop, M. Dao, S. Suresh
openaire   +1 more source

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