View Single Post
Old 12-31-2010, 12:28 PM   #119
vex
RCC Loves Me Not You
 
vex's Avatar
 
Join Date: Jul 2008
Location: Influx.
Posts: 2,113
Rep Power: 20
vex will become famous soon enough
Sorry didn't see this until just now.
Quote:
Originally Posted by sofaking View Post
I don't feel like going back and quoting, but everytime you asked for information about what I would like it was completely sarcastic and ended with you telling me that you didn't want to do the math. I got as specific as I was looking for and told you that you could use constants for variables if it made it easier.
Using variables in this sort of math will cause you to get a bunch of variables in equations that do not make much sense. We'll use constants sure enough, but leaving variables into the equations of question is going to be worse than just using real values.

Quote:
Your response was that you didn't want to waste your time. So quoting myself getting told that you aren't going to do it doesn't help. Move on to the physics lesson if you'd like to make a point, it's the closest thing to figuring anything out we've gotten to.
This isn't physics in the true sense of the word (at least not from when I took those classes). This is basic material science.
Quote:
I already said that was your point... so if you're not adding anything what is the point in saying it again?
It seemed to me that you were attempting to sustain this as scientific procedure. If you're no longer sustaining that or if I misinterpreted that from your post then by all means the point is moot now.
Quote:
So you're saying that there is no possibility that the tire can sustain this, or you're just saying that you know a lot of factors determine the safety of a tire and without the math you can't do anything but speculate what may or may not happen?
This may better help you understand: Factor of Safety. A reduction in the FOS reduces the ability for the tire to handle the same stresses as a properly mounted tire would otherwise be able to endure.
Quote:
Lets define for the sake of discussion that safety is the tire not failing (in any way) before the tread is used up during normal driving conditions. I understand it doesn't meet the original specifications, but the only information we know as of yet is that it will fail to the left side of my graph. Whether it gets even close to the green area is complete speculation.
I think this is a failure to communicate what FOS is.
Quote:
I'm using a Falken Azenis RT615k 215/40-17 on a 17x9.5 wheel.
This was the point I was making about drawing the diagram and getting to the point. Going back and forth to prove you know where you're going with your point is a waste of both of our time.
Again, I think you miss the point. Discussing the science isn't for my benefit but yours. If you do not understand where the number comes from at the end of the day all it's going to be to you is a number--But if you understand where that number came from at the end of the day you will know and understand what the material is doing when you stretch the tire and place it under load.
vex is offline   Reply With Quote