The machine component from problem 2 (bar with hole and notches) undergoes variable loading from 42,500N to 45,000N. The part is made from 6061-T6 aluminum (S_u = 310 MPa and S_y = 275 MPa). The machined part requires a reliability of 95%. The large size results in a gradient strength factor of c_G=0.8 (see note c in Table 8.1). Calculate the safety factor. If the safety factor is less than one (i.e., shaft fails), find the number of cycles to failure.

The machine component from problem 2 (bar with hole and notches) undergoes variable loading from 42,500N to 45,000N. The part is made from 6061-T6 aluminum (S_u = 310 MPa and S_y = 275 MPa). The machined part requires a reliability of 95%. The large size results in a gradient strength factor of c_G=0.8 (see note c in Table 8.1). Calculate the safety factor. If the safety factor is less than one (i.e., shaft fails), find the number of cycles to failure.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter4: Numerical Analysis Of Heat Conduction

Section: Chapter Questions

Problem 4.49P

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