Why do not shear fractures form at 45° to ?1, where the resolved shear stress is at its maximum?

What will be an ideal response?


Answer: This is explained in Box 7.2, where it is illustrated how shear fracture initiation or reactivation is controlled not only by shear stress (which is at its maximum at the plane oriented at 45° to ?1), but also by the normal stress (high normal stress counteracts slip). The ideal balance between these two effects is found at an angle higher than 45°.

Environmental & Atmospheric Sciences

You might also like to view...

Explain how, without any meteorological instruments other than your eyes, you could identify the passage of an occluded front.

What will be an ideal response?

Environmental & Atmospheric Sciences

When water vapor condenses in the atmosphere, sensible heat is absorbed and converted to latent heat

Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

What is a way humans try to stop beach erosion?

What will be an ideal response?

Environmental & Atmospheric Sciences

By 1970, less that 1% of the U.S. workforce was engaged in agriculture

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences