get. The shear stress at a point in a liquid is found to be 0.03 N/m². The velocity gradient at the point is 0.15 s'. What will be it's viscosity (in Poise)? a) 20 b) 2 c) 0.2 d) 0.5
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- The velocity profile of a viscous liquid flowing over a fixed plate is given by v=0.68yy2(v is the velocity in m/s and y is the distance from the plate in m).i. Calculate the shear stresses at the plate surface and 0.34 m away from the plate(µ=0.9 Ns/m2).ii. Draw the velocity and the shear stress profile of the system.a)Calculate the stress components acting on the inclined plane AB. b)Calculate prime stresses c)Calculate the maximum shear stress Shear stress = 60 MpaQ4) two plate one lower fixed and one upper moved with a velocity 0.3 m/s , thedistance between the two plate is 0.3 mm and viscosity of the liquid is 0.65*10-3kg/m.s , calculate the shear stress on the upper plate .
- Two horizontal plates are parallel to one another and separated by an oil film (SAE 10 oil at 20 deg C, Table A.4) that is 1.0 mm thick. The upper plate moves to the right at 2.0 m/s. The bottom plate moves to the right at 6.0 m/s. What is the shear stress in N/m2 of the oil on the upper plate? Is the shear stress on the upper plate directed to the right or to the left?5 decimal places 1. At the proportional limit, a certain material has a stress of 78 MPa as the strain is 0.0004. What is the modulus of elasticity of the material in GPa? 2. A 7-ft diameter spherical tank is subjected to an internal pressure of 24 psf. If the wall thickness is 0.35", determine the tangential stress of the wall in psi. A spherical pressure vessel of 5.7 meter diameter is subjected to an internal pressure of 5.0 MPa. Determine the tangential stress (MPa) developed in the wall of the vessel if the thickness is 4 mm.At 200C, there is a gap d = 0.2 mm between the lower endof the bronze bar and the rigid slab supported by twosteel bars as shown. Neglecting the mass of the slab,determine the stress in each rod when the temperatureassembly is increased to 1000C.
- Determine the following A. At the top layer what is the dry density B. Total stress @ point D C. Effective stress @ point b D. Effective stress @ point cValue of effective stress at point CThe stresses shown act at a point on the free surface of a machine component. Normal and shear stress magnitudes acting on horizontal and vertical planes at the point are Sx = 12.4 ksi, Sy = 3.5 ksi, and Sxy = 3.6 ksi. Assume B = 29°. Determine the normal stresses ox, and oy, and the shear stress rxy, at the point.
- Calculate the minimum diameter of cylindrical vessel made of 1-inch thick materials that is use to carry a gas at a pressure of 1500psi. The stress is limited to 12ksi.At the proportional limit, a 20-mm-thick × 75-mm-wide bar elongates 4.6 mm under an axial load of 485 kN. The bar is 1.6-m long. If Poisson’s ratio is 0.32 for the material, determine the proportional limit.The rigid horizontal slab is attached to two identical copper rods. There is a gap Δ = 6.18 mm between themiddle bar, which is made of aluminum, and the slab. Neglecting the mass of the slab, calculate the stress in each rod when the temperature in the assembly is increased by 81°C. Use the following data: