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  1. alienrobot

    Mohr-Coulomb Failure envelope - help please

    Actually, these data are for rock. I plotted a p-q diagram in excel and ran a "best fit" line and came up with similar values as aeoliantexan did.
  2. alienrobot

    Mohr-Coulomb Failure envelope - help please

    Oops, I left off some of the other data. Sigma_1 Sigma_3 0 -892 8850 0 14925 1000 20900 2000 30900 3000 62887 6000 I need to find the tensile strength, compressive strength, shear strength, internal friction and angle of failure by rewriting the...
  3. alienrobot

    Mohr-Coulomb Failure envelope - help please

    Hi all, I am stuck in my attempts to calculate M-C envelope as well as uniaxial strength parameters from example stress data: Sigma_1 (psi) Sigma_3 (psi) 0 -892 Any tips on how to get started? FYI, I am not an engineer but am familiar with the principles of some of...
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