The fracture properties of an ultralow-expansion glass intended for use in windows for the Space Shuttle were characterized by strength and fracture-mechanics techniques to provide reliable design data. Proof-test diagrams for predicting minimum times-to-failure under specified service loads were developed from measurements of subcritical crack growth in water and air. Failure predictions were confirmed from strength measurements in water. In vacuum (<10(-4) torr), the fracture behavior was similar to that of other high-SiO2 glasses, as evidenced by the absence of subcritical crack growth and by insensitivity of the critical stress intensity factor to temperature.
Application of fracture mechanics to space-shuttle windows
Zur Anwendung der Bruchmechaniken auf die Space-Shuttle-Fenster
Journal of the American Ceramic Society ; 57 ; 319-323
1974
5 Seiten, 12 Quellen
Article (Journal)
English
LEBENSDAUER , PHYSIK , BRUCHMECHANIK , MATERIALBRUCH , GLAS , MESSEN , RISSWACHSTUM , WAERMEDEHNUNG
Application of fracture mechanics on the space shuttle
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