Dyneema rope VS steel rope - strength test - break test

http://www.AtlanticBraids.com

A strength comparison between Dyneema fiber rope and steel rope.

dyneema 57 6.0 rope test 13 1.4 dyneema rope 10 1.1 winch rope splicing 8 0.85 steel rope 4 0.42 rope braiders 4 0.42 dynema vs steel 2 0.21 dyneema® 2 0.21 high speed winches 2 0.21 test rope

dyneema rope 115 2.8 dyneema 110 2.7 dyneema vs steel 9 0.22 dyneema rope strength 9 0.22 dyneema ropes 7 0.17 dynema 6 0.15 dynema rope 6 0.15 dyneema strength 4 0.1 rope strength comparison 4 0.1 dyneema®

Category:

Science & Technology

Tags:

• Dyneema
• rope
• VS
• steel
• break
• test
• strength
• winch
• splice
• braid
• towing
• tow
• truck
• safety
• hazard
• winching
• lumenera
• high
• speed
• camera

[LanceCampeau]

Enjoy losing your fingers when things go wrong... :P

[HighPerformanceProds]

It looks to me like the Wire rope grips (bull-dogs) were attached to the steel wire rope the wrong way around, the elbow should go onto the non-working tail of the cable with the saddle sitting on the working part of the cable. If it's put on the wrong way around (and it certainly appeared the way in the video) then it significantly weakens the steel wire rope - hence the expression "never saddle a dead horse".

[droceretik]

@droceretik Better to compare strengths using the usual methods of termination, that is clamps and thimble or ferrule and thimble for steel and loop splice and sleeve fot Dyneema braid. However if you just want to compare the strength of the wire agains the fibre then a potted end and swaging is the go. Even though it is not used in ordinary marine and lifting .equipment. Usual the steel rope chosen is more than double the required strength for safety so a 10 % drop in strength is irrelevent.

[droceretik]

@diffynou Need to use the strongest available method for the individual material. Steel rope only attains 90% strength with splices. Termination efficiencies vary from about 70% for a Flemish eye alone; to nearly 90% for a Flemish eye and splice; to 100% for potted ends and swagings. You can't use a potted end and swaging on braided Dyneema. Splicing steel rope and terminating with potted end is a specialist job. These experts are only available in very limited circumstances.

[DavidPIsaac]

It does look like the steel breaks initially at the clamp. However, the test still seems relevant to real-world use...one of the benefits of Dyneema is that it is easy to splice, whereas steel is not so it is likely to get clamped. .

Dyneema is awesome stuff!!

[petere1959]

@Mikeyg79 That is the only method that can have an accurate w.l.l. and breaking strain,

[petere1959]

@diffynou You are correct in some of the things that you have mentioned, but, under australian standards, w/rope grips and definately knots, can never be given a w.l.l. or an accurate breaking strain. Normally, the wire should be hydraulically swaged, therefore giving it a w.l.l and a 5:1 breaking strain.

Dyneema braided rope is an excellent product, as long as it is hand spliced correctly.

[dgan123456]

@diffynou youre smarty :))

[adrenalize666]

@rostokrssrb So dont touch the rope with a razor. lol

[adrenalize666]

OK, Im sold. I want Dyneema

[diffynou]

The wire was tested using wire clamps and the Dyneema rope was spliced.

I would like to see the same test with metal wire spliced, clamps and knots can affect a lot the strength of the line.