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<< Click to Display Table of Contents >> Arching Angle |
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The arching angle is the angle defined by the arch stress field that forms in the material under flow conditions. The volume of material above the shear plane and under the arched stress field effectively load the shear plane. The arching angle can be determined through shear cell testing and hopper geometry.
Conservative values for the arching angle for free flowing bulk solids are 70 to 80 degrees.
The arching angle is used in the CEMA method for determining the material load on the shear plane.
The arching angle value used by the program and for a specific file can be set in the Default Values screen.