ZERODUR glass ceramics: design of structures with high mechanical stresses

Kurt Nattermann; Peter Hartmann; Guenther Kling; Peter Gath; Stefano Lucarelli; Boris Messerschmidt

doi:10.1117/12.788870

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23 July 2008 ZERODUR glass ceramics: design of structures with high mechanical stresses

Kurt Nattermann, Peter Hartmann, Guenther Kling, Peter Gath, Stefano Lucarelli, Boris Messerschmidt

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Proceedings Volume 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation; 70180Q (2008) https://doi.org/10.1117/12.788870
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

Designing highly mechanically loaded structures made of the zero expansion glass ceramic material ZERODUR® means to analyze the stress for the whole loaded surface, considering changes of the stress state occurring over the total lifetime. Strength data are obtained from specimens with small size and relatively short loading duration, making them not directly applicable to the much larger areas that occur in practical cases. This publication gives guidelines for calculating a fracture probability for mirrors and structures on the basis of existing strength data.

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Kurt Nattermann, Peter Hartmann, Guenther Kling, Peter Gath, Stefano Lucarelli, and Boris Messerschmidt "ZERODUR glass ceramics: design of structures with high mechanical stresses", Proc. SPIE 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 70180Q (23 July 2008); https://doi.org/10.1117/12.788870

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