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Re: [ptlong] Dynamic Rope - Impact Factors:
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USnavy
Mar 24, 2010, 5:54 PM
Views: 5659
Registered: Nov 6, 2007
Posts: 2667
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ptlong wrote: USnavy wrote: Modulus of elasticity, sorry. I have no idea where I got coefficient, its been a long day. Anyway I was saying that the elongation properties of a rope are not linear. Say placing 50 kg on a rope yields a stretch of 5%. Doubling that number to 100 kg will not yield a stretch of 10%. When you add a second identical rope the force created by the climber is shared between each rope. However the impact force is not doubled and the dynamic elongation is not halved because the elongation properties of the rope are not linear and adding a second rope to the system changes the properties. Huh? Even if the stress/strain curves were perfectly linear the impact force would not be doubled and the elongation would not be halved. Nice try.
(This post was edited by USnavy on Mar 24, 2010, 5:56 PM)
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Edit Log:
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Post edited by USnavy
() on Mar 24, 2010, 5:55 PM
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Post edited by USnavy
() on Mar 24, 2010, 5:55 PM
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Post edited by USnavy
() on Mar 24, 2010, 5:55 PM
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Post edited by USnavy
() on Mar 24, 2010, 5:56 PM
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