I wonder if you couldn't simply compare the Young's Modulus and yield strength of bamboo to steel, aluminum, or CF and use that comparison to design tubes similar to a high end tubeset. Specifically, Reynolds has already spent a lot of time and money perfecting their 853 tubeset. Why not just use their tubing specifications to size your bamboo after correcting for the modulus and strength?

To Erik B; the OP's spelling was not perfect. However, this is a forum for framebuilding, not grammar improvement. If I were feeling snarky, perhaps I could point out the obnoxious runon sentence with which you ended your last post. I wouldn't typically do that, however, because as long as a person can convey a message without using "u" for "you" or similar trash then I'll read it and help out if I'm able.