Larson-miller parameter, Mechanical Engineering

Assignment Help:

Larson-Miller parameter:

For material of example of calculate life in hours at temperature of 900oC, and at σ = 20 MPa.

Solution

Larson-Miller parameter is given by

m = T (ln t + 85.75)

Use  T = 900 + 273 = 1173 K

But        m = 16.75 × 104

From Example 1.7 at σ = 20 MPa

∴          1173 (ln t + 85.75) = 16.75 × 104

∴          ln t =(16.75 × 104 /1173 )- 85.75

                    = 142.8 - 85.75 = 57.05

∴          t = 5.95 × 1024  hours


Related Discussions:- Larson-miller parameter

Module site installation preparation, Q. Module Site Installation Preparati...

Q. Module Site Installation Preparation? The following tasks shall be accomplished at the Facility site prior to setting the modules on the piles: After module support piles

What are the basic different air-fuel mixture, Describe carburetion. What a...

Describe carburetion. What are the basic different air-fuel mixture on which an engine can be operated ? Write a short note on sterling cycle. In an engine working on inlet pres

Explain about fired heaters and combustion engines, Q. Explain about Fired ...

Q. Explain about Fired Heaters and Combustion Engines? Fired heaters and combustion engines shall normally be located at a safe distance from hazardous areas as they provide po

#title.wedge friction, explain wedge friction?with simple example? solve an...

explain wedge friction?with simple example? solve any simple problem in wedge friction

What is holiday detection, Q. What is Holiday Detection? Each length of...

Q. What is Holiday Detection? Each length of coated pipe shall be checked for holidays with a high quality, heavy duty, full wave rectified non pulsating direct current detecto

Air filter cleaning steps, Air Filter Cleaning :  Air filter filters the a...

Air Filter Cleaning :  Air filter filters the air, which enters into the carburetor. Then, this air mixes with fuel and this mixture enters into engine. If air is not clean, it wi

Forces and equilibrium, write a notes of system of forces and classified it...

write a notes of system of forces and classified it a/c to orintenssion of forces

Control system, hi i have an assignment in control system can u do it ?

hi i have an assignment in control system can u do it ?

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