Stress wave induced damage and fracture in impacted glasses
Year: 1994
Type: article
Abstract: - The conditions for crack nucleation under impact loading were investigated system-atically for four glasses which differ in their chemical composition, hardness and material den-sity. Edge-on impact experiments were carried out with blunt steel cylinders within the velocity range from 20 m/s to 1000 m/s. The propagation of shock waves, of primary and secondary cracks and crack systems and the growing of crack systems from nucleated centers were ob-served by means of a Cranz-Schardin camera in a shadow optical arrangement. Resum6- Les conditions pour la nucleation de fissures due a une charge d'impact ont Cte etu-dikes syst6matiquement pour quatre sortes de verre qui se distingnent par leur composition chimique, leur duretc? et leur densite du matkriau. Des essais avec impact sur les bords furent rkalis6s avec des cylindres d'acier Cmousse dans la gamme de vitesse de 20 mls B 1000 mls. Nous avons observe B l'aide d'une carnCra Cranz-Schardin, qui faisait partie d'un systeme optique ombroscopique, la propagation d'ondes de choc, de fissures et de systkmes de fissures primaires et secondaires et le dkveloppement de systemes de fissures B partir de centres de nucleation. 1.
DOI: 10.1051/jp4:19948114
Authors: H. Senf, E. Strassburger, H. Rothenhäusler
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2091250366