Page 31 - Mark Gommers "Bowlines Analysis

Effect of load - Stress and strain on the nipping loop

It is thought that the region where rupture propagates from is somewhere in the nipping loop – most likely
near the region near where the SPart enters the nipping loop.

If this proves to be true, then increasing the radius of the nipping loop should raise the threshold load at which
rupture initiates. To date, there is no peer reviewed test data to either prove or disprove this theory.

The standard #1010 Bowline
has 2 rope diameters within the
nipping loop.

This Bowline has 3 rope
diameters within the nipping
loop.



A simple method to test the
effect of increasing the radius
of the nipping loop.
(A ‘slipped Bowline’…insert
the tail back through the
nipping loop)
Slipped Bowline
(#1010)

Page 30 of 59 Bowline Analysis Version 2.7a 16 July 2016 © Copyright Mark Gommers