Question

In: Mechanical Engineering

Estimate the axial infinite fatigue strength (10⁶) and 10³ fatigue strength for a 25 mm diameter...

Estimate the axial infinite fatigue strength (10⁶) and 10³ fatigue strength for a 25 mm diameter reversed axially loaded steel bar having Su =950 Mpa, Sy = 600 Mpa and is made from a “cold drawn” steel.

Assume: T< 840º F, 99 % Reliability, CG = .8

Solutions

Expert Solution

For 10^6 cycles fatigue strength is 186.96 MPa

For 10 ^3 cycles fatigue strength is 712.5 MPa


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