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Topic Date User

Rope around a tight bend 7-Apr-2010 At 7:29:45 PM carry

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Thankyou for all the links. I have been through most of these already. There is a lot of info around about how rope strength is compromised from different types of knots, but my question is not about that.

It's more like this example:
If I have a 9mm static rope (breaking strength 23kn) and I loop the midpoint around a 7mm maillon anchor. What weight, hanging off both rope ends will cause the rope to break? I'm assuming the rope will break where it it bearing on the maillon. And does the diameter of the maillon make a big difference? I'm not sure, but I think it would.

One of your links says: "The diameter on fixed pin terminations should be at least 3 times the rope diameter". This sounds like good advice but I want more specific data.

You know something like:
X diameter static rope looped once around Y diameter pin = Z% of normal rope breaking strength