Stretching/bending carabiners

Discuss vertical caving, equipment, & techniques. Also visit the NSS Vertical Section.

Moderator: Tim White

Re: Stretching/bending carabiners

Postby Scott McCrea » Feb 13, 2012 9:30 pm

Here's a video of Grivel (a climbing gear manufacturer) testing carabiners. You can see exactly how much they stretch, bend and flex and it still passes their specs. The flexing, stretching we are seeing when cavers are climing is nothing compared to these tests.

http://vimeo.com/31483613

sorry, I can't figure out how to imbed a Vimeo video.
Scott McCrea
SWAYGO
User avatar
Scott McCrea
Global Moderator
 
Posts: 3198
Joined: Sep 5, 2005 3:07 pm
Location: Asheville, NC USA
NSS #: 40839RL
Primary Grotto Affiliation: Flittermouse Grotto
  

Re: Stretching/bending carabiners

Postby NZcaver » Feb 13, 2012 9:55 pm

Scott McCrea wrote:Here's a video of Grivel (a climbing gear manufacturer) testing carabiners. You can see exactly how much they stretch, bend and flex and it still passes their specs. The flexing, stretching we are seeing when cavers are climing is nothing compared to these tests.

http://vimeo.com/31483613

Very cool! :kewl:
User avatar
NZcaver
Global Moderator
 
Posts: 6316
Joined: Sep 7, 2005 2:05 am
Location: Anchorage, Alaska
Name: Jansen
NSS #: 50665RL
Primary Grotto Affiliation: CCG
  

Re: Stretching/bending carabiners

Postby LukeM » Feb 14, 2012 10:07 am

Here's another good video about carabiner production that shows breaking strength tests of a few 'biners at 6:20. Amazing how much they deform before they fail.
User avatar
LukeM
NSS Hall Of Fame Poster
 
Posts: 705
Joined: Jan 30, 2008 2:53 pm
Location: Albany, NY
Name: Luke Mazza
NSS #: 59317
Primary Grotto Affiliation: Syracuse University Outing Club
  

Re: Stretching/bending carabiners

Postby paul » Feb 14, 2012 12:56 pm

NZcaver wrote:
Scott McCrea wrote:Here's a video of Grivel (a climbing gear manufacturer) testing carabiners. You can see exactly how much they stretch, bend and flex and it still passes their specs. The flexing, stretching we are seeing when cavers are climing is nothing compared to these tests.

http://vimeo.com/31483613

Very cool! :kewl:


Impressive! Nice to see Stevie Haston again.
paul
NSS Hall Of Fame Poster
 
Posts: 513
Joined: Dec 9, 2005 7:46 am
Location: Peak District, UK
Name: Paul Lydon
  

Previous

Return to On Rope!

Who is online

Users browsing this forum: No registered users