rope test 042110(2).wmv

[atlantea43660]

It was (as I recall) 5/16" spectra twelve strand and the failure load was very close to the breaking strength of the line.

You can hear individual strands failing starting at about 1:04, long before the big failure.

This is because the load is not evenly balanced within the splice. The failure is the inner braid where it enters the knot.

My explanation:

The knot weakens the line by 50%

The inner and outer braid do not share the load equally.

50% of the load is on each side of the loop.

[duncansam16]

what was the rope and and what was the failure point?

[svloki]

cool