The role of residual stress in a Prince Rupert's drop of soda-lime glass undergoing a self-sustained and stable destruction/fracture wave
✍ Scribed by Chaudhri, M. Munawar
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 235 KB
- Volume
- 206
- Category
- Article
- ISSN
- 0031-8965
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✦ Synopsis
Abstract
It is shown experimentally using colour high‐speed framing photography, carried out at 1 million frames per second that in a Prince Rupert's drop made of soda‐lime glass, a self‐sustained destruction/fracture wave can travel at a steady and stable speed of (1700 ± 100) m s^–1^. It is also shown that this limiting velocity of the destruction/fracture wave, which is considerably smaller than the longitudinal wave velocity of ∼5300 m s^–1^ in this glass, is due to crack bifurcation, which occurs in individual cracks moving at the limiting velocity, at the immediate front of the destruction/fracture wave. Moreover, it is also shown that in the intact part of a Prince Rupert's drop undergoing a self‐sustained destruction/fracture wave, the residual stress state remains approximately unaltered until the intact part comes to within about one mm of the advancing destruction/fracture wave front. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)