ZERODUR~R Glass Ceramics Design of Structures with High Mechanical Stresses

摘要

Designing highly mechanically loaded structures made of the zero expansion glass ceramic material ZERODUR~R 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.