The results of a tensile test on a specimen of a mild steel are as follows:...
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The results of a tensile test on a specimen of a mild steel are as follows: original diameter = 20mm; original gauge length = 40mm; proportional limit load = 80 kN; extension at proportional limit= 0,048mm; yield point load = 85 kN; maximum recorded load = 150 kN; final length between gauge points = 55,6mm; and final minimum diameter (neck) =15,8mm. Calculate (a) The modulus of elasticity for the mild steel. (b) The proportional limit stress. (c) The ultimate tensile stress. (d) The percentage elongation; and (e) The percentage reduction in area. Sketch a typical stress-strain graph for mild steel and indicate all the main points on the graph. The results of a tensile test on a specimen of a mild steel are as follows: original diameter = 20mm; original gauge length = 40mm; proportional limit load = 80 kN; extension at proportional limit= 0,048mm; yield point load = 85 kN; maximum recorded load = 150 kN; final length between gauge points = 55,6mm; and final minimum diameter (neck) =15,8mm. Calculate (a) The modulus of elasticity for the mild steel. (b) The proportional limit stress. (c) The ultimate tensile stress. (d) The percentage elongation; and (e) The percentage reduction in area. Sketch a typical stress-strain graph for mild steel and indicate all the main points on the graph.
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