We have identified the mechanism responsible for webbing slippage in webbing lockers (weblocks). During a test on a hydraulic cyclic testing machine, we found webbing to move through the weblock with every stretch and release cycle. We observed this micro-slippage of the webbing within the weblock.
The webbing was installed in single wrap without a tie-off so we could witness webbing slippage, webbing tailwalk, and a complete failure of the webbing locking mechanism first hand.
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Thanks to the ISA volunteers for spending tousands of hours of their freetime! Thanks to Siebert Research for the testing facility!
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