Calculate the crack stress intensity factor, Mechanical Engineering

Assignment Help:

Calculate the crack Stress Intensity Factor:

If on the beam specimen of last problem two loads, each equal to 500 N, are applied at distance of 25 mm from central plane, calculate the crack SIF.

Solution

L/2  = 25 mm;  a/ W =  0.2; Z = 1041.67 mm2 ; S = 100 mm

M= P (S - L)/2 where, P is the load which is 500 N.

∴          M = 500 (100 - 50)/2 = 12500 N-mm

∴          s= M/ Z = 12500 / 1041.67 =12 N-mm

Y3 = 1.99 - 2.47(a/ W) + 12.97 (a/W) 2 - 23.17 (a/W) 3 + 24.8(a/ W) 4

= 1.99 - 2.47 (0.2) + 12.97 (0.2)2 - 23.17 (0.2)3 + 24.8 (0.2)4

= 1.99 - 0.494 + 0.5188 - 0.1854 +0.04

= 1.87

 (Check from Figure 7 that Y3 from curve (2) can be read as 1.87.)

1592_Calculate stress intensity factor1.png


Related Discussions:- Calculate the crack stress intensity factor

Point of inflexion, Point of inflexion: Define the term point of cont...

Point of inflexion: Define the term point of contraflexure or point of inflexion. Also define point of zero shear force?  Sol.: The points (other than extreme ends of beam)

The tension in the cable attached to the chair, A "swing" ride at a carniva...

A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 m cables attached to a vertical rotating pole, as the drawing shows. (θ = 60.0°) Suppose the tota

Introduction to general safety and service tips , INTRODUCTION: Safety is ...

INTRODUCTION: Safety is very important which is often neglected at our workplaces. Small precautions if carried out regularly can ensure safe, hygienic and clean environment at ou

Determine the percentage savings in the material, Determine the percentage ...

Determine the percentage savings in the material: A hollow shaft containing an inside diameter 0.5 times the outer diameter is to replace the solid shaft of the similar materi

Calculate all the mass-normalised modal vectors, The body, suspension and e...

The body, suspension and engine mounting system of a vehicle may be idealised as a three degree of freedom system consisting of a bar of mass 1400 kg and the centre of mass at G, 1

Reversible and irreversible processes - thermodynamics, Reversible and irre...

Reversible and irreversible processes: Thermodynamic system which is capable of restoring the original state of it by reversing the factors responsible for occurrence of proc

Explain co-planar parallel force, Illustrate following key terms with suita...

Illustrate following key terms with suitable example :- (a) Co-planar parallel force. (b) Co-planar non concurrent force. (c) Non co-planar concurrent force.

What are the approaches to the design of retaining walls, What are the appr...

What are the approaches to the design of retaining walls? The approach to the design of retaining walls can be started as follows: a. Chosse a trial dimension of the wall

Name the drivers for a common international standard, Drivers for a common ...

Drivers for a common international standard The drivers for a common international standard included : Global commerce and data exchange; Increasingly complex produ

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd