User talk:An artichoke

For the Flow stress page, what source are you using to change the notation from the previous sourced notation ($$\bar{\sigma} $$) to the notation you claim is typical ($$Y_f$$)? I will be reverting your edit if I don't hear back as I have a few sources  for the previous notation and no sources supporting your new notation. Best regards, Bob Clemintime (talk) 23:35, 21 November 2020 (UTC)