# Question

This problem illustrates that the strength of a machine part can sometimes be measured in units other than those of force or moment. For example, the maximum speed that a flywheel can reach without yielding or fracturing is a measure of its strength. In this problem you have a rotating ring made of hot-forged AISI 1020 steel; the ring has a 6-in inside diameter and a 10-in outside diameter and is 1.5 in thick. What speed in revolutions per minute would cause the ring to yield? At what radius would yielding begin? [Note: The maximum radial stress occurs at r = (rori) 1/2; see Eq. (3–55).]

## Answer to relevant Questions

A light pressure vessel is made of 2024-T3 aluminum alloy tubing with suitable end closures. This cylinder has a 3 ½ -in OD, a 0.065-in wall thickness, and ν = 0.334. The purchase order specifies a minimum yield ...The gear forces shown act in planes parallel to the yz plane. The force on gear A is 300 lbf. Consider the bearings at O and B to be simple supports. For a static analysis and a factor of safety of 3.5, use distortion energy ...Suppose the collar of Prob. 5–31 is tightened by using a screw torque of 190 lbf .in. The collar material is AISI 1040 steel heat-treated to a minimum tensile yield strength of 63 kpsi. (a) Estimate the tension in the ...For Eqs. (5–36) show that the principal stresses are given by Distinguish between the DBMS and a file management system.Post your question

0