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Impact force
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Mark Misselhorn
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Oct 26, 2004 00:43 PDT
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Dear all
Can anyone please assist with some data and formula for impact force as follows?
a.. A formula for impact force experienced on the gear (as opposed to on the belayer of falling climber) which takes into account the following variables: mass of falling climber, fall factor, distance fallen, amount of rope out, and stretch in the rope (which varies with such factors as rope diameter) (any I'm missing). The assumption is a perfect system (ie: no rope drag up to the effective protection). This would be a formula into which one could put data for different scenarios to determine how much force is actually exerted on a piece of protection. I am assuming that impact force is the maximum effective force / energy experienced in the system during a fall.
b.. Any pre-calculated information for different types of falls and climber masses to give us an idea of the actual forces involved.
c.. Any measured figures for such forces?
Thanks
Mark Misselhorn
MCSA KZN
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<DIV><FONT face=Arial size=2>Dear all</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Can anyone please assist with some data and formula
for impact force as follows?</FONT></DIV>
<UL>
<LI><FONT face=Arial size=2>A formula for impact force experienced on the gear
(as opposed to on the belayer of falling climber) which takes into account the
following variables: mass of falling climber, fall factor, distance
fallen, amount of rope out, and stretch in the rope (which varies with
such factors as rope diameter) (any I'm missing). The assumption
is a perfect system (ie: no rope drag up to the effective
protection). This would be a formula into which one could put data for
different scenarios to determine how much force is actually exerted on a
piece of protection. I am assuming that impact force is the maximum
effective force / energy experienced in the system during a fall.</FONT></LI>
<LI><FONT face=Arial size=2>Any pre-calculated information for different
types of falls and climber masses to give us an idea of the actual forces
involved.</FONT></LI>
<LI><FONT face=Arial size=2>Any measured figures for such
forces?</FONT></LI></UL>
<DIV><FONT face=Arial size=2>Thanks</FONT></DIV><FONT face=Arial size=2>
<DIV><BR>Mark Misselhorn</DIV>
<DIV>MCSA KZN</FONT></DIV></BODY></HTML>
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