On 4/18/2018 12:57 PM, Earls61 wrote:
Is max pressure related to tpi?


Yes, and other factors (such as tpi of which material):

http://file.scirp.org/pdf/WJET_2016051313584674.pdf

There are 100+ years of study in that area

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971