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Evaluate stress induced in rod:
The two copper rods and one steel rod lie in vertical plane and support load of 50kN together as shown in figure given below. Each rod is 25 mm in diameter, the length of steel rod is 3 m and the length of each copper rod is 2m. If modulus of elasticity of steel is double that of copper, make calculations for stress induced in each rod. It can be presumed that each rod deforms by same amount. Sol.: Each rod deforms by same amount and accordingly that is,
Division of load between steel and copper rods is given below: total load = load carried by steel rod + rod carried by two copper rods
σC = (50 × 103)/1633.78 = 30.60 N/mm2 .......ANS σS = 1.33 C =1.33 × 30.60 = 40.7 N/mm2
Chassis Lubrication System : This lubrication system consists of outer body parts, which are lubricated from outside of the body. Table of Lubrication Points Sl.
diameter = 100mm length = 470mm power = 4000 w radians = 78 shear modulus 60000 n/mm^2 determin the maximum shear stress and angle of twist
Capacitor Discharge Welding This is used for welding of studs, welding of thermocouples, etc. on the base metal. A low voltage, high amperage electrical discharge from a capac
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The following data were obtained in a boiler trail: Mass and temperature of feed water: 680 kg/hr and 20 0 C, Steam temperature and its pressure : 15bar and 300 0 C, Coal used
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Principle of superposition: Explain the principle of superposition. Sol.: A machine member is subjected to number of forces acting on its outer edges and also at some
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