Changes to the shock response of fused quartz due to glass modification

• Published in: International journal of impact engineering Vol. 35; no. 12; pp. 1376 - 1385
• Main Authors: Alexander, C.S., Chhabildas, L.C., Reinhart, W.D., Templeton, D.W.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Kidlington Elsevier Ltd 01.12.2008; Elsevier
• Subjects: Exact sciences and technology; Fracture mechanics (crack, fatigue, damage...); Fundamental areas of phenomenology (including applications); Fused silica; Glass; Glass modifiers; Physics; Random network model; Shock; Solid mechanics; Structural and continuum mechanics; Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...); Shock; Glass modifiers; Fused silica; Random network model; Glass; Amorphous material; Statistical analysis; Vibration; Probabilistic approach; Amorphous state; Windows; Quartz; Modeling; Silica; Shock wave; Boron; High speed; Long distance propagation; Mechanical shock
• ISSN: 0734-743X; 1879-3509
• DOI: 10.1016/j.ijimpeng.2008.07.019

Silica based glasses are commonly used as window material in applications which are subject to high velocity impacts. Thorough understanding of the response to shock loading in these materials is crucial to the development of new designs. Despite the lack of long range order in amorphous glasses, the structure can be described statistically by the random network model. Changes to the network structure alter the response to shock loading. Results indicate that in fused silica, substitution of boron as a network former does not have a large effect on the shock loading properties while modifying the network with sodium and calcium changes the dynamic response. These initial results suggest the potential of a predictive capability to determine the effects of other network substitutions.