Calculate stress intensity factor, Mechanical Engineering

Assignment Help:

Calculate stress intensity factor:

For the plate in Figure (a) W = 25 mm, 2a = 10 mm, plate thickness, t = 2 mm, Load P = 1000 N. Calculate stress intensity factor if length of plate is 150 mm.

Solution

For crack at a distance of 75 mm from loaded end, the effect of edge on SIF may be disregarded.

SIF may be calculated from Eq. (3).

                             s =  P/ Wt =  1000 /25 ´2  = 20 N/mm2

P a / W =  P´5/25 = 0.6284

∴          tan P a /W =  tan 0.6284= 0.7265 (Note P a/W is in radians)

∴          K I = s[W tan P a / W]1/2  = 20[25´0.7256]1/2

or,   K I  = 85.235 N/mm2  ( 1870_Calculate stress intensity factor.png)                               ---------- (i)

If  a/W  =  5/25=1/5  is regarded as small, then

                 2022_Calculate stress intensity factor1.png     -----------(ii)

 (i) and (ii) are only approximately close.


Related Discussions:- Calculate stress intensity factor

Mechanical Vibrations in Strings, Description & Derivation of Mechanical Vi...

Description & Derivation of Mechanical Vibration in Strings, Rods and Aero Foil Flutter

Theory of production process, In Grey Cast Iron, carbon is present in -----...

In Grey Cast Iron, carbon is present in ------------form while in white cast iron, it is found in ----------- form.

Explain the information phase of radial drilling machine, Information Phase...

Information Phase: Step: To secure all and complete information and gather facts and from best sources.   Our project is selected based on the current problem face by the

Estimate the rate of flow, At a sudden enlargement of a water main from 240...

At a sudden enlargement of a water main from 240 mm to 480 mm diameter, the hydraulic gradient rises by 10 mm. Estimate the rate of flow.

Maths, Physical meaning of gradient of 2 nd order tensor?

Physical meaning of gradient of 2 nd order tensor?

Arm of couple - mechanics, Arm of Couple: Explain couple and Arm of c...

Arm of Couple: Explain couple and Arm of couple? Sol.: If the two equal and opposite parallel forces (that is equal and unlike) are acting on a body, they do not have a

What is interference, a) What is Interference and show the relation for the...

a) What is Interference and show the relation for the minimum number of teeth required for a wheel. b) Show the relations for Maximum length of path of contact and Maximum lengt

Expression for the maximum shearing stress, Expression for the maximum shea...

Expression for the maximum shearing stress: Obtain expression for the maximum shearing stress and maximum shearing planes. Sol.: The condition for maximum shearing stress i

Find the resultant hydrostatic force, Question. Consider the triangular lam...

Question. Consider the triangular laminar D for given b and h shown below. (a) Find x L (s) and x R (s), the left and right ends of the elementary strip, of thickness ds, a

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