question archive A solid round bar, 25 mm in diameter, has a groove 2
A solid round bar, 25 mm in diameter, has a groove 2
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A solid round bar, 25 mm in diameter, has a groove 2.5-mm deep with a 2.5-mm radius machined into it. The bar is made of AISI 1020 normalized steel and is subjected to a purely reversing torque of 130 N. m.
(a) Estimate the number of cycles to failure.
(b) If the bar is also placed in an environment with a temperature of 500 degrees C, estimate the number of cycles to failure.
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