Effect of the Volume of Magneto-rheological Fluid on Shear Performance
As a kind of smart material, MR (magneto-rheological) fluid is dramatically influenced by the external magnetic field and can change from the liquid state to semi-solid state in several milliseconds. In this paper, the effect of different volume of MRF on its shear performance is proposed. A set of testing systems, including the plate-on-plate MRF shearing test rig, is built up to measure the relationship between the produced shear torque and the added volume of MRF in different current. The variation of magnetic flux density in the shear gap is measured by teslameter and simulated before and after MRF is added. The results validate the effect of volume on the shear torque experimentally.
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material failure is imposed by one of these stresses reaching its limiting value or by their combined effect [ 11 ]. In addition, in flexure tests, the change in particular stresses along the length of the structure and the stress concentrations is usually observed at the loading and supporting pins [ 12 ]. For that reason, the failure criteria (FC) need to be implemented to simultaneously assess the bending and shearperformance of the structural element and to take the combined effect of all induced stresses into account [ 13 ]. Herein, as long as isotropic materials