회전 전단모드와 유동모드하에서의 ER유체의 빙햄특성비교

초록

This paper presents field- dependent yield stress in two different working modes; shear and flow mode. In shear mode, one of electrodes moves releative the other, while two electrodes are fixed in flow mode. Each mode has dominant Bingham characteristics and hence proper model needs to be identified. Constraining the shear rate of the test apparatus, yield stresses are distilled in both modes and compared with respect to the intensity of electric field. In this test, two different ER fluids which have different particle concentration are employed.