KIT | KIT-Bibliothek | Impressum | Datenschutz
Open Access Logo
§
Volltext
DOI: 10.5445/IR/1000081283
Veröffentlicht am 21.03.2018

Damage in silica by hydroxyl generation described by Wang's theoretical data

Fett, Theo; Schell, Günter

Abstract:
Water diffusion into silica glass results in a thin zone near the surface of the glass. In this zone the water reacts with the SiO₂ structure and "damages" the originally intact SiO₂ rings. The consequence is a reduced Young’s module. This effect can be described by use of continuum damage mechanics according to Kachanov and Lemaitre. In this report the dependency between hydroxyl concentration and damage will be described for large water concentrations by using the Wang-model. In addition the implications on strength of pre-damaged materials, deformation behavior and crack-tip stress intensity factor are addressed.


Zugehörige Institution(en) am KIT Fakultät für Maschinenbau (MACH)
Institut für Angewandte Materialien - Keramische Werkstoffe und Technologien (IAM-KWT)
Publikationstyp Forschungsbericht
Jahr 2018
Sprache Englisch
Identifikator ISSN: 2194-1629
URN: urn:nbn:de:swb:90-812832
KITopen ID: 1000081283
Verlag KIT, Karlsruhe
Umfang VI, 17 S.
Serie KIT Scientific Working Papers ; 85
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft KITopen Landing Page