Fatigue crack propagation, Mechanical Engineering

Assignment Help:

Fatigue crack propagation:

If it is assumed that no plastic deformation occurs around crack tip and law of fatigue crack propagation for place of above Example is da/dN =  10- 8 (Δ KI eff )2.0 mm/cycle , find after how many cycles the plate will fracture.

Solution

Δ K I = ΔK I eff     because there is no plastic deformation in crack tip neighbourhood.

1926_Fatigue crack propagation.png

ac = 146.14 mm, ai = 35 mm from above Example .

or, Nf   =2´104 ln ( ac/ ai) =  2´104 ln (146.14/35)

or, N f  = 2´104 ln (4.175) = 28584 cycles


Related Discussions:- Fatigue crack propagation

Explain working of belt transmission type dynamometer, Explain construction...

Explain construction and working of Belt transmission type Dynamometer?

Determine root of equation, Determine root of equation xe x = cosx by Mull...

Determine root of equation xe x = cosx by Muller's method. Solve the following equations by Matrix Inversion method.

Fluid Mechanics, Please help me solve the following problem. Steam is thro...

Please help me solve the following problem. Steam is throttled from a pressure of 700kPa to 100kPa and a temp. of 100 degrees Celsius. Determine the dryness factor of the steam

Fluid mechanics, What is differential approach (differential formulation) i...

What is differential approach (differential formulation) in fluid mechanics? What are velocity and acceleration fields, give examples. Find, study and write down the differential f

Types of couple - mechanics, Types of couple: Explain about different...

Types of couple: Explain about different types of couple?  Sol.: There are mainly two types of couples: 1 . Clockwise Couple   A couple whose tendency

Angular shear stress.., how is angular shear stress distributed in between ...

how is angular shear stress distributed in between two stanchions

Injection molding, finishing operation of telephone outer body after inject...

finishing operation of telephone outer body after injection molding

Find out angular displacement of a partical, Find out angular displacement ...

Find out angular displacement of a partical: The angular displacement of a rotating body starting from rest is defined by φ (t ) = 4 t 3   - 3 t 2 . Find out its angular di

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