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1 International Journal of Applied Mechanics and Engineering

1 2005

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Characterization of the viscous behavior of compacted ceramic particles under shear and pressure loads

Zhou F., Advani S. G., Wetzel E. D.

International Journal of Applied Mechanics and Engineering

2005

Vol. 10, no 3

505-514

Two different viscometer systems are designed and fabricated to characterize the behavior of ceramic particles under shear stress and high pressures. The first system is a Couette flow device with ability to exert pressure on the particles during its rotation and measure the torque and angular velocity of the system. From this information we can calculate viscosity and energy dissipation due to friction between particles as a function of the shear rate. The second system focuses on the movement of a cylinder through a bed of compacted ceramic particles. By measuring the force required to move the cylinder through the compacted bed, we can evaluate the effective resistance of the particle bed under various compaction pressures. This characterization should prove useful in understanding the shearing and dissipation mechanisms between granular particles under high pressures.