- Access to
**1 Million+**Textbook solutions - Ask any question from
**24/7**available

Tutors

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 1018 CD steel and is subjected to a purely reversing torque of 200 N • m. For the S-N curve of this material, let f = 0.9.

(a) Estimate the number of cycles to failure.

(b) If the bar is also placed in an environment with a temperature of 450°C, estimate the number of cycles to failure.

(a) Estimate the number of cycles to failure.

(b) If the bar is also placed in an environment with a temperature of 450°C, estimate the number of cycles to failure.

- Access to
**1 Million+**Textbook solutions - Ask any question from
**24/7**available

Tutors