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A Modified Indentation Toughness Technique
Author(s) -
Cook Robert F.,
Lawn Brian R.
Publication year - 1983
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1983.tb10571.x
Subject(s) - indentation , materials science , fracture toughness , composite material , toughness , residual stress , deformation (meteorology) , plasticity
A modified indentation technique for measuring toughness is described. The method retains the elastic/plastic basis of previous contact fracture descriptions but eliminates explicit reference to residual stress parameters in the toughness formulation. Accordingly, improved correlations between indentation data and “conventional” K c values are obtained, even for materials (e.g. anomalous glasses) with nonideal deformation responses .