The findings of a tensile test on a mild steel specimen were as follows: Diameter of...
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The findings of a tensile test on a mild steel specimen were as follows: Diameter of the test piece 12.5 mm, Gauge length 40.0 mm, Load at yield point 28.8 KN Maximum load 68.5 kN, Distance between gauge marks after fracture 70 mm. Determine the following: a) The ultimate tensile strength (UTS). (4) b) The yield stress of the material. (2) c) The percentage elongation. (2) (2) d) The percentage reduction in area. 2.2 Minimum diameter of fractured test piece 8 mm True strain in a tensile test on a steel specimen is equal to 0.22 at 360 MPa true stress and 0.12 at 480 MPa true stress. In the flow curve equation, ascertain the strength coefficient and strain-hardening exponent. (20) The findings of a tensile test on a mild steel specimen were as follows: Diameter of the test piece 12.5 mm, Gauge length 40.0 mm, Load at yield point 28.8 KN Maximum load 68.5 kN, Distance between gauge marks after fracture 70 mm. Determine the following: a) The ultimate tensile strength (UTS). (4) b) The yield stress of the material. (2) c) The percentage elongation. (2) (2) d) The percentage reduction in area. 2.2 Minimum diameter of fractured test piece 8 mm True strain in a tensile test on a steel specimen is equal to 0.22 at 360 MPa true stress and 0.12 at 480 MPa true stress. In the flow curve equation, ascertain the strength coefficient and strain-hardening exponent. (20)
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