Engineering, 14.09.2019 04:10 maddiemalmstrom
In a tensile test on a steel specimen, true strain is 0.171 at a stress of 263.8 mpa. when true stress is 346.2 mpa, true strain is 0.226. determine strain hardening exponent, n, in the flow curve for the plastic region of this steel.
Answers: 2
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At steady state, air at 200 kpa, 325 k, and mass flow rate of 0.5 kg/s enters an insulated duct having differing inlet and exit cross-sectional areas. the inlet cross-sectional area is 6 cm2. at the duct exit, the pressure of the air is 100 kpa and the velocity is 250 m/s. neglecting potential energy effects and modeling air as an 1.008 kj/kg k, determine ideal gas with constant cp = (a) the velocity of the air at the inlet, in m/s. (b) the temperature of the air at the exit, in k. (c) the exit cross-sectional area, in cm2
Answers: 2
In a tensile test on a steel specimen, true strain is 0.171 at a stress of 263.8 mpa. when true stre...
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