View Single Post
Old 05-08-10 | 03:24 PM
  #43  
eddy m
Senior Member
20 Anniversary
 
Joined: Jun 2003
Posts: 679
Likes: 125
Originally Posted by dabac
No. A radial lace heads-out will get the same effect as a cross lace with the NDS flange half a thickness closer to the center of the axle. That will do a bit for evening out the tension differences. If you don't believe this, run it through spocalc yourself.


Wrong about the first part, right about the second.



If you want to go that route I believe the proper engineering term is strain, tension by unit of surface area.
I was right about everything. Your original post was about a heads-out radial lacing, which does cause a little lower tension. Using more crosses on one side and fewer on the other does equalize tension a little because the more crosses requires longer spokes that have a more slightly more acute angle than the short spokes with fewer crosses. Stress is tension/area. Strain is elongation/length, and is proportional to stress within the elastic range. Either stress or strain would have been a correct term.

em, p.e.
eddy m is offline  
Reply