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(Solved): Problem 1) A pin in the shape of a stepped shaft, as shown in Fig. 7.3 of the textbook (page 191), h ...
Problem 1) A pin in the shape of a stepped shaft, as shown in Fig. 7.3 of the textbook (page 191), has
D=12mm,d=10mm, and
r=0.5mm. It is subjected to fully-reversed constant amplitude axial cyclic load with an amplitude of 25 kN . a) Estimate the number of cycles to failure use the S-N approach. Assume it is made of a steel with
S_(u)=900\sigma _(f)^(')=1200MPa, and
b=-0.07. Hint: since
\sigma _(f)^(')is given, do not use
A=S_(u)