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Wavelengths of surface features

Submitted by r.nikhil on
research
Roughness
wavelengths

I am working on the surface features of steel . I understand that surface features are broken down into various wavelengths and represented as Wa to We (0.1mm to 30mm wavelengths). Could some guide me to a reference which shows how to go about this process from the raw surface profile data ? Possibly, it involves Fourier Transforms, but I need a basic reference which shows how it is done .

 

Thanks!

 

A paper on ILS : Inequality level set : A new approach to handle inequality constraints

Submitted by Nicolas MOES on
research
X-FEM
contact
level set
inequality constraint

Treating volumetric inequality constraint in a continuum media with a coupled X-FEM/Level-Set strategy

N. Bonfils, N. Chevaugeon, N. Moës

(accepted for publication in computer Methods in applied mechanics and engineering).

dewatering during excavation

Submitted by samson on
research

when I model excavation with low permeablity soil problem is not converging,due to the negligible vaule of excess pore pressure throught the soil.How can I resove this problem for the real excavation time .(If I run the analysis within very short period of time , results can be obtained under undrained ccondition)



how can I model dewatering during excavation using ABAQUS

Streamline Measurement Process with Technological Advance Tooling for Measuring Brake Disc

Submitted by sifisonxumalo on
research

Any who has ideas on my reseasch project.

These are the topics are need to cover for now.

1. Wearing modes to classify the disc failure.

2. What are the latest advance technological technics avaliable to measure disc brakes more efficient, 100% accurate with scale of micro's and effective.

3. Any work that has been conducted on disc brake modes literature

4. How big is this problem brake disc failure global 

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