Premium
Effect of Tangential Loading on Critical Conditions for Radial Cracking in Brittle Coatings
Author(s) -
Lee ChulSeung,
Lawn Brian R.,
Kim Do Kyung
Publication year - 2001
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.1151-2916.2001.tb01081.x
Subject(s) - indentation , materials science , brittleness , cracking , composite material , coating , critical load , brittle fracture , contact mechanics , fracture (geology) , structural engineering , finite element method , buckling , engineering
Results of Hertzian contact tests investigating the effects of superposed tangential loads on the critical conditions for radial cracking at the undersurfaces of brittle coatings on compliant substrates are reported. It is demonstrated that these effects are secondary, so that conventional normal indentation remains an appropriate test procedure for characterizing this highly deleterious mode of coating fracture under a wide range of complex loading conditions.