Problem_15_04 - u 150 MPa := M 7.5 kN m := d 125 mm := SF...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Problem 15.4 Given: A circular shaft is made of gray cast iron, which may be considered to be linearly elastic up to its ultimate strength σ u = 150 MPa. The shaft has a diameter of 125 mm and is subjected to a bending moment M = 7.5 kN-m. Find: the maximum value for torque T that can be applied to the shaft if it has been designed with a factor of safety of 3.0 for both M and T. Solution:
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: u 150 MPa := M 7.5 kN m := d 125 mm := SF 3. := r d 2 := I d 4 64 := J 2 I := M r I 39.114 MPa = := T r J = 1 xx yy + 2 xx yy 2 2 xy 2 + + = u SF 2 2 4 2 + + = u SF 2 2 2 4 23.33MPa = := T J r 8.947 kN m = :=...
View Full Document

Ask a homework question - tutors are online