title: Crack arrest and stress dependence of laser-induced surface damage in fused-silica and borosilicate glass.
abstract: Results of experiments on stress-inhibited laser-driven crack growth and stress-delayed laser-damage initiation thresholds in fused silica, borosilicate glass (BK-7), and cleaved bulk silica are presented. A numerical model is developed to explain the crack arrest in fused silica. Good agreement is obtained between the model and a finite-element code. The crack arrest is demonstrated to be the result of the breaking of a hoop-stress symmetry that is responsible for crack propagation in fused silica.
authors.affiliation: University of Rochester, 250 East River Road, Rochester, New York 14623-1299, USA. fdah@lle.rochester.edu
authors.forename: F
authors.initials: F
authors.lastname: Dahmani
authors.forename: J C
authors.initials: JC
authors.lastname: Lambropoulos
authors.forename: A W
authors.initials: AW
authors.lastname: Schmid
authors.forename: S
authors.initials: S
authors.lastname: Papernov
authors.forename: S J
authors.initials: SJ
authors.lastname: Burns