[PA-NJ Glassblowers] Glassblowing Mystery of Prince Rupert's Drop at 130, 000 fps
Tony Patti
gaffer at glassblower.info
Mon May 20 22:53:42 EDT 2013
As I wrote on my web page at
<http://www.glassblower.info/prince-ruperts-drop-and-glass-stress.html>
http://www.glassblower.info/prince-ruperts-drop-and-glass-stress.html
This is one of those WOW moments, when you see your first Prince Rupert's
Drop.
It is a small bit of molten glass dropped into a bucket of cold water.
What happens next is quite amazing
When I wrote that, I did not expect a couple years later to be able to see
exactly what happens at 130,000 frames per second (fps) video,
with the help of a $100,000 Vision Research Phantom v1610 video camera on
YouTube!!!
<http://www.youtube.com/watch?v=xe-f4gokRBs&feature=youtu.be>
http://www.youtube.com/watch?v=xe-f4gokRBs&feature=youtu.be
What you can see is that the fracture starts at the tail and travels down
the piece, this is 154 seconds into the video.
<http://www.youtube.com/watch?feature=player_detailpage&v=xe-f4gokRBs#t=154s
>
http://www.youtube.com/watch?feature=player_detailpage&v=xe-f4gokRBs#t=154s
The video then goes on to derive the Failure Front (explosion) at ONE MILE
PER SECOND (equivalent to 3,600 mph!)
Video created at Orbix Hot Glass in Alabama. <https://orbixhotglass.com/>
https://orbixhotglass.com/
Awesome camera
<http://www.visionresearch.com/Products/High-Speed-Cameras/v1610/>
http://www.visionresearch.com/Products/High-Speed-Cameras/v1610/
<http://www.visionresearch.com/uploads/Docs/Products/DS_WEB-v1210-v1610.pdf>
http://www.visionresearch.com/uploads/Docs/Products/DS_WEB-v1210-v1610.pdf
Tony Patti
<http://www.glassblower.info> www.glassblower.info
<mailto:gaffer at glassblower.info> gaffer at glassblower.info
<http://www.glassblower.info/qr-code.html> QR Code for Tony Patti -
www.glassblower.info
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