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3 cards from this section. Quick, good the night before a test.
What does shear stress refer to?
Think about the direction of the force.
Define cohesion in geology.
It’s related to the material's ability to stick together.
What is the Mohr-Coulomb failure criterion used for?
Remember, it's not about measuring but understanding fault behavior.
True or False: Normal stress always acts parallel to the fault surface.
Think about the definition of normal compared to shear stress.
In an area where the shear stress is 50 MPa, the friction angle is 25 degrees, and the normal stress is 30 MPa, will the rocks fail according to the Mohr-Coulomb failure criterion?
You may need to assume a value for cohesion or check if it's provided.
Describe a scenario wherein a fault remains locked despite accumulating stress and the implications for nearby structures.
Consider the concept of strain energy and sudden releases.
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