Determine the fatigue strength of medium carbon steel, Mechanical Engineering

Determine the fatigue strength of medium carbon steel:

For determining the fatigue strength of medium carbon steel 15 specimens, identical in all respect were tested in cantilever rotating beam fatigue testing machine. The ultimate tensile strength of steel was known to be 550 MPa and test began at 275 MPa with a fixed step of 5 MPa. Determine the fatigue strength if results obtained are described below.

2309_Determine the fatigue strength of medium carbon steel.png

Solution

As a first step plot survival (o) and failure (x) pattern form visual depiction. From the plot it is seen that the lowest level at which survival is obtained is σo = 275 MPa. Calculations are made by the help of the table.

483_Determine the fatigue strength of medium carbon steel1.png

Figure: Failures Survival Pattern

Eq. (22) is utilized for calculating fatigue strength, σe.

1253_Determine the fatigue strength of medium carbon steel2.png

Substituting

1963_Determine the fatigue strength of medium carbon steel3.png

σ e  = 275 + 5 (( 7/8) + (1/2))

= 281.875 MPa.

Say 282 MPa    (Ans.)

Posted Date: 1/23/2013 2:36:00 AM | Location : United States







Related Discussions:- Determine the fatigue strength of medium carbon steel, Assignment Help, Ask Question on Determine the fatigue strength of medium carbon steel, Get Answer, Expert's Help, Determine the fatigue strength of medium carbon steel Discussions

Write discussion on Determine the fatigue strength of medium carbon steel
Your posts are moderated
Related Questions
Files: Files are used to remove excess metal by cutting action. These can be classified according to their length, shape, cross-section.

What is Hopper unit Two hydraulically operated folding type hoppers are provided on the front side of the machine. The capacity of the hopper is 4.25 CM.

ELECTRIC DISCHARGE PHENOMENON The flow of electricity through metallic solids, or through liquid metals is called Conduction. The electricity  flow through ionic solutions

The aim of this project is for you to discover how to use a spreadsheet to "model" a typical engineering problem, in this case a heat transfer situation. And to discover how this m

history of electronics materials

Soldering This is a group of join process, which generates, coalescence of materials by heating them to a suitable temperature and by using a filler metal having a melting point

What is Conformance Testing Conformance Testing : There was no mechanism for testing processors or resolving errors between two processors.

Q. Define spot welding electrodes • To conduct the welding current to the work pieces. • To transmit to the work pieces in the weld area the amount of force needed to pro

Formula for maximum power transmitted by belt: Derive formula for maximum power transmitted by belt when centrifugal tension is considered. Sol: Let T 1  = Tension on

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4