1.The shear stress-strain diagram for a steel alloy is shown in the figure. If a bolt having a diameter of 0.25 in. is made from this material and used in the lap joint, determine the force P required to cause the material to yield. Also determine E for the bolt material Take ? = 0.3.
2.Determine the maximum axial force P that can be applied to the steel plate. The allowable stress is sallow = 21 ksi.
3.If the design speed of a multi-lane highway is 60 mph, what is the minimum sight distance that should be provided on the road if (a) the road is horizontal and (b) the road has a maximum grade of 5 percent? Assume the perception-reaction time = 2.5 sec.