The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2 determine the maximum value of p if the allowable stress is (o-allow) sit_200 mpa for the steel and (sigma_ailow)a| = 150 mpa for the aluminum. e_st = 200 gpa, e_al = 70 gpa.

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)