Re: The strength of a rope is more than the sum of the strengths of its separate



On 21 Sep., 21:50, "Androcles" <Headmas...@xxxxxxxxxxxxxxxx> wrote:
"minimus" <spammergetthisem...@xxxxxxxxxx> wrote in message

news:gb61eu$fhh$1@xxxxxxxxxxxxxxxxxxxxxxxxxxxx

The strength of a rope is more than the sum of the strengths of its
separate
strands.

Why?

It is twisted, the force vector is at an angle to the strands.
----/////////////////////----

Hi,
it sounds right to me , but there must be more to it: Fibers are
twisted into a twine, which is twisted into strands and then into rope.
( Sailors,please excuse landlubber terminology ) In the end in most
"twisted" ropes the twine seems to run in the direction of the rope.
But of course the diameter of the rope is bigger than the diameter of
its combined fibers, and I wonder if thats already the solution , i.e.
would a bundle of fibers as thick as the rope be just as strong ?
ed
.



Relevant Pages

  • Re: the strength of a rope
    ... This data chart shows unexpected results in increasing rope diameter ... inch rope to compare tensile strength. ... However the strands of larger rope may be of larger diameter meaning that there is more air space in larger ropes, explaining the lower than expected increase in tensile strength. ...
    (alt.usage.english)
  • Re: The strength of a rope is more than the sum of the strengths of its separate
    ... > The strength of a rope is more than the sum of the strengths of its ... the force vector is at an angle to the strands. ... which is twisted into strands and then into rope. ... its combined fibers, and I wonder if thats already the solution, i.e. ...
    (sci.physics)
  • Re: the strength of a rope
    ... A tension exerted on the rope ... is divided among all the strands. ... the opposite - that he proved that the strength of a rope is less than the ... Consider a traditional rope made of strands of yarn. ...
    (alt.usage.english)
  • Re: the strength of a rope
    ... is divided among all the strands. ... The strength would be equal to the sum of strand strengths if the rope ... Kernmantle ropes on the other hand *are* largely made from straight ...
    (alt.usage.english)
  • Re: the strength of a rope
    ... Bob Cunningham wrote: ... would result in a weaker rope (additional stresses induced in all strands, ...
    (alt.usage.english)