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

Determine the rankine efficiency, A simple Rankine cycle works between pres...

A simple Rankine cycle works between pressures 0.06 bar and 28 bar, the initial condition of steam being dry saturated. Determine the cycle efficiency, specific steam consumption a

Governor, Use of hartung governor

Use of hartung governor

Problems, Prlblems 1 & 3 can you provide accurate and clear solved out solu...

Prlblems 1 & 3 can you provide accurate and clear solved out solutions not done by computer either.

Process control scheme, In class, we derived and solved a model of a non-is...

In class, we derived and solved a model of a non-isothermal, insulated, CSTR with an exothermic reaction (model6.m). We want to derive and solve a very similar model of a system wi

Lubrcants, what is the difference between mineral and vegetable oils in ter...

what is the difference between mineral and vegetable oils in terms of oiliness and oxidization?

Battery electrolyte and gases and brake fluid safety tips, Battery Electrol...

Battery Electrolyte and Gases Battery emits explosive gases, keep sparks and flames away. Ensure adequate ventilation while charging the battery. Brake Fluid Spilling

Engineering Mechanics, What are the practical applications of solid cylinde...

What are the practical applications of solid cylinder or shaft under cyclic axial loading

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