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

Calculate stress intensity factor, Calculate stress intensity factor: ...

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 o

Determine the moment of forces, Determine the moment of forces: The si...

Determine the moment of forces: The side of a square ABCD is 1.60 m long .Four forces equal to 6, 5, 4 and 8 N acts respectively along with the line CB, BA, DA, DB. Determine

Belts, crowning of pulley

crowning of pulley

Pendulum pump mechanism, describe about pendulum pump mechanism and dia...

describe about pendulum pump mechanism and diagram

Mounting systems for the welding head-boom mounted type, Mounting Systems ...

Mounting Systems For The  Welding Head-Boom mounted type These are the most versatile type of welding systems. Normally the boom is supported by means of a column. The welding

Determine the ratio between moment and load, Determine the ratio between mo...

Determine the ratio between moment and load: Any close coiled helical spring of circular section extends 1 mm while subjected to an axial load of W and then given an angular r

Angular dimensions-autocad, Angular Dimensions There is only one comman...

Angular Dimensions There is only one command in this section and it is used to annotate angular measurements. The Angular Dimension Command The Angular command is amazi

The brasses-copper alloys, The Brasses 70/30 brass also called as cart...

The Brasses 70/30 brass also called as cartridge brass contains 70% copper and 30% Zinc. This is employed for cartridge cases, sheet fabrication, and condenser tubes and for u

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