Hello everyone,
I was measuring Lateral Strain and thereby Poisson’s ratio of a UCS specimen in PFC2D. It is observed that Lateral Strain derived by measurement sphere is way greater than by using Gage Balls. I have taken the diameter of measurement sphere be the width of the specimen. The code for gage balls I have used is attached below. I would like to know if there is any mistake in my approaches and which approach to be followed to measure lateral strain.