# Mohr-Coulomb Failure Criterion

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Equation / Last modified by EmilyB on 2016/08/15 16:40
tau =
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EmilyB.Mohr-Coulomb Failure Criterion
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The Mohr-Coulomb Failure Criterion represents the linear envelope that is obtained from a plot of the shear strength of a material versus the applied normal stress.  This relation is expressed: tau=sigmatanphi+c, where:

• sigma = normal stress
• phi = slope of the failure envelope
• c = intercept of the failure envelope (cohesion)