A Study of Damage during Impact in Zerodur

H. Senf , E. Strassburger , H. Rothenhäusler

The damage evolution in the transparent glass-ceramic ZERODUR, when impacted by pointed and blunt steel cylinders, was investigated in a high-speed photographic study. The impact velocities were varied in the range from 50 m/s to 1500 m/s. Crack velocities and damage velocities were measured by means of the sequences of shadowgraphs, taken with a Cranz-Schardin camera. The damage velocities and the threshold for nucleation of fracture were determined as a function of impact velocity. The results showed, that the glass-ceramic ZERODUR exhibits similar damage mechanisms as observed with different types of glasses in earlier work. The ballistic efficiency of the material was determined by means of Depth of Penetration (DOP) tests.

Domaines: Articles anciens

H. Senf, E. Strassburger, H. Rothenhäusler. A Study of Damage during Impact in Zerodur. Journal de Physique IV Proceedings, 1997, 07 (C3), pp.C3-1015-C3-1020. ⟨10.1051/jp4:19973171⟩. ⟨jpa-00255463⟩