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Hi,
Are those mentioned stress values from the same location or different locations around the hole? Please note that the Mohr-Coulomb Stress Safety tool evaluates maximum and minimum principal stresses at the same locations and does not base its calculations on the absolute maximum principal stress and the absolute minimum principal stress occurring at two different locations in the body. In other words, the combination of the maximum and minimum principal stresses in each spot determines the possibility of failure using this tool. You can find further information about this tool in the following link: Mohr-Coulomb Stress Safety Tool
I hope this guidance helps.
Thanks,
Pedram
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