Calculate plastic zone - fatigue crack propagation mechanism, Mechanical Engineering

Calculate plastic zone:

Calculate plastic zone ahead of crack in above problem if σY = 250 MPa.

Solution

From Eq.

924_Calculate plastic zone.png

Here KI is taken as KI max since the plastic deformation will be caused by higher stress, smax.

∴ r= [70√∏a]2 / 2∏aσ2y= (4900a xP )/(2Px (350)2 ), a =70/2 =35mm

 = 4900 x35 /(2x350x350) = 0.7 mm

Posted Date: 1/23/2013 3:17:09 AM | Location : United States







Related Discussions:- Calculate plastic zone - fatigue crack propagation mechanism, Assignment Help, Ask Question on Calculate plastic zone - fatigue crack propagation mechanism, Get Answer, Expert's Help, Calculate plastic zone - fatigue crack propagation mechanism Discussions

Write discussion on Calculate plastic zone - fatigue crack propagation mechanism
Your posts are moderated
Related Questions
Breather tube : Check breather tube for blockage and also air filter box hole where breather tube is connected, for any blockage.

Internal Parts of boiler: P r essu r e Gauge :   For indicating steam pressure W ater Level Indicator : for indicating water level. Steam Stop Valve : Permits fl

Q. Properties of plastic? Their great variety of physico- chemical and mechanical properties, and ease with they can be made into various articles have found plastic their wide

Describe the Elements of Polyhedral objects Objects that are often encountered in engineering applications can be classified as either polyhedral or curved objects. A polyhedr

Engine Lubrication System: This system facilitates the lubrication of all the engine components, gears and other associated parts.


Throttle Valve: The throttle valves control the quantity of mixture supplied to the cylinder. This is controlled by throttle grip with the help of a cable. When we open throttle

Q. Show Corrosion of BFW Pump? BFW pumps are in high-pressure high-temperature service and may be subject to cavitation and erosion-corrosion. Also overheating of these pumps i

Modal Dispersion in Step-Index Fibers Determine the core radius of a multi-mode step index fiber with a numerical aperture NA = 0.1 if the number of modes M = 5000 when the wave

The Power Method is a classic numerical algorithm for determining the largest eigenvalue and eigenvector associated with a matrix A. Write a matlab function that returns the larges