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Analysis of constant-volume shear tests based on precise measurement of stresses in powder beds
2018
Advanced Powder Technology
This study demonstrates a new constant-volume shear test configuration to analyze the stresses in powder beds and evaluate powder flowability. A novel cylindrical shear cell geometry and load cell arrangement allowed precise measurement of the normal stress acting on the shear planes of the powder beds. The stress transmission ratio between the top and shear planes decreased with increasing ratio of the powder bed height in the upper section of the shear cell to the shear cell diameter. This
doi:10.1016/j.apt.2018.02.033
fatcat:uv4h6yedpbeslbcbppdct6a63a