Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

A study of in-situ radial crack initiation at hardness indentations in strengthened soda-lime silica glass

: Petzold, M.

Boletin de la Sociedad Espanola de Ceramica y Vidrio 31 (1992), S.239-245 : Ill., Lit.
ISSN: 0037-8550
ISSN: 0366-3175
Fraunhofer IWM ()

A model of radial crack initiation is applied to the case of the formatin of radial cracks at hardness indentations during the unloading of the indentatin. Despite of the simplifications the experimental results are in good agreement with the theoretical predictions with respect to the influence of residual stresses in glass surfaces. Thus, these investigatins may be applied to estimations of treatment induced residual stresses and to studies of the crack initiation mechanism.