I ran across a for force calculator for tubing from primeline industries and thought others might find it useful.
"A question often asked by engineers and product developers is "Do you have the pounds of force applied by your tubing at different stretch levels?" The answer is "yes". You can download our force calculator.
Force Calculator for Excel users -
http://www.primelineindustries.com/t...calculator.xls
Force Calculator for Lotus users -
http://www.primelineindustries.com/t...calculator.123
Our force calculator spread sheet will calculate the direct pounds of resistance at different levels of elongation. It will compare up to 4 sizes of tubing, plot the results on a line graph, and calculate the percent of difference between the sizes. It is worth mentioning that our tubing is a vulcanized product. The age of the tubing plays an important role in its physical properties. The results of this spread sheet are closely related to the physical properties of our tubing the day it would ship from our factory."
Mr. B