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What is the difference between the value of angle of repose and angle of friction? Are they always the same?

6 years ago


Answers : (1)


Dear Nehal

angel of repose is different from the angel of friction.

Basically angle of repose  is an engineering  property of granular materials. It is the maximum angle of a stable slope  determined by friction, cohesion  and the shapes of the particles. When bulk granular materials are poured onto a horizontal surface, a conical pile will form. The internal angle between the surface of the pile and the horizontal surface is known as the angle of repose and is related to the density, surface area and shapes of the particles, and the coefficient of friction of the material. Material with a low angle of repose forms flatter piles than material with a high angle of repose. In other words, the angle of repose is the angle a pile forms with the ground.

While angel of froction is the angel between the noemal force and athe resultant between tha normal force and friction force.

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6 years ago

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