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B What is a good physical reference for microstrain?

  1. Nov 18, 2016 #1
    I can say that the distance between my knuckle and my finger joint is 1~ inch, that a baseball weighs ~1 lb, and ~60 joules is the feeling of dropping a bowling ball on your foot. I'd like to understand strain in this way, can anyone offer a common place reference?

    Also, I know strain is dimensionless, then why are we using microstrain? Is the reference point so immense event?

    Also, Does the strain gauge measurement e = dR/R/GF yield microstrain or strain?

  2. jcsd
  3. Nov 23, 2016 #2
    Thanks for the thread! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post? The more details the better.
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