Understanding 2D and 3D Stress: Differences and Applications Explained"

[Kongys]

Dear all,

I having a trouble in defining 2D and 3D stress . As I know Maximum principal stress in 2D and 3D cases is totally different. In which condition we should apply 2D stress formula and when we need to use 3D stress formula?

 

[Studiot]

Do you have a particular application or area of application in mind?

 

[Kongys]

Do you have a particular application or area of application in mind?

If like deflection of a steel cylinder rod with multi axial loading? In this case axial load , torsional load and bending load is applied.

 

[Studiot]

Such a system can be reduced to several simultaneous 2D problems, which are easier to handle than a 3D one.

This is because you can take sections along the cylinder.

Much of mechanical and structural engineering stress analysis can be accomplished by either direct 2D analysis or reducing the problem to a series of 2D analyses as above.

The most common place to find the need for 3D analysis is in geotechnical engineering and fluid mechanics.

Both disciplines usually deal with what is known as continuum mechanics.

 

[Kongys]

Such a system can be reduced to several simultaneous 2D problems, which are easier to handle than a 3D one.

This is because you can take sections along the cylinder.

Much of mechanical and structural engineering stress analysis can be accomplished by either direct 2D analysis or reducing the problem to a series of 2D analyses as above.

The most common place to find the need for 3D analysis is in geotechnical engineering and fluid mechanics.

Both disciplines usually deal with what is known as continuum mechanics.

I think I got some idea with that, thanks for your sharing.