The angle of inclination to the horizontal of an inclined plane on which a body will be just upon the verge of motion.

The maximum slope or angle at which a material, such as soil or loose rock, remains stable (stable angle).

The angle beyween the horizontal and the maximum slope that a soil assumes through natural processes.

The angle of the steepest slope that a pile of uncemented material can attain without collapsing from the pull of gravity.

The steepest slope angle at which a particular sediment will lie without cascading down.

inclination of a slope consisting of loose, coarse, well-sorted rock

The maximum angle that a soil, sediment or other loose material can be placed or accumulate and be stable. The angle of repose varies for different types of materials and different moisture conditions.

The maximum angle at which a given material will stay at "rest". Example: the angle of stockpile sides.

The maximum angle of a heap of particulate solid measured from the horizontal. This is not a unique property of a particulate solid.

The maximum slope angle at which unconsolidated sediment can accumulate and still remain stable;

The greatest angle of steepness a slop can have while still maintaining its sediment.

The maximum SLOPE (measured from the HORIZON) at which SOILS and loose materials on the banks of CANALS, RIVERS, or EMBANKMENTS stay stable.

The maximum angle from horizontal at which a given material will rest on a given surface without sliding or rolling.

A measure of the interparticle friction and ease of shape retention during debinding. It is the angle from the horizontal plane that a pile of loose powder will assume when freely poured through an orifice.

A characteristic of bulk solids equal to the maximum angle with the horisontal at which an object on an inclined plane will retain its position without tending to slide; the tangent of the angle of repose equals the coefficient of static friction.

The angle at which a divided solid will stop flowing - measured from the horizontal. A steeper angle indicated less flowabilty. In tumble blenders it raises the center of gravity of the mass and increases the horsepower required for rotation. Typically between 30° to 60°- we assume 45° if unknown.

angle at which material will remain stable

When a sample of powder is allowed to fall onto a flat surface under defined conditions to form a pile, the angle of repose is the angle between the sloping surface of the pile and the horizontal. Thus a high flowability powder, forming a relatively flat pile has a lower angle of repose than a poor flowability powder with a relatively tall pile. Angle of repose usually increases as flowability decreases with increasing moisture content.

The maximum angle of a just-stable slope of a heap of dry granular material.

The maximum angle of slope at which a given soil type will remain in place without sliding.

The angle of repose is an engineering property of granular materials. When bulk granular materials are poured onto a horizontal surface, a conical pile will form. The 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 coefficient of friction of the material.