Measure inward and outward pressure in a pipe?

[riahc3]

Lets say I have the following pipe with layers of different material (material is simply a example):

As you can see in the middle there is a hole with just air thru it. If I fill that pipe with pressurized water, it will make OUTWARD pressure on that first steel pipe. Obviously because of the different material, they will also give in OUTWARD pressure and INWARD pressure to hold itself so it won't break.

How can I measure the pressure each layer makes INWARD and OUTWARD? What sensors are there out there to do this?

Thank you

 

[Chestermiller]

Lets say I have the following pipe with layers of different material (material is simply a example):

As you can see in the middle there is a hole with just air thru it. If I fill that pipe with pressurized water, it will make OUTWARD pressure on that first steel pipe. Obviously because of the different material, they will also give in OUTWARD pressure and INWARD pressure to hold itself so it won't break.

How can I measure the pressure each layer makes INWARD and OUTWARD? What sensors are there out there to do this?

Thank you

The "inward" and "outward pressures" (normal stresses) at the interfaces are equal to one another by Newton's third law. You might be able to use flush mounted stress transducers to measure the stresses. You can also calculate the stresses and deformations (given the physical properties of the different materials) using stress analysis.

Chet

 

[russ_watters]

It depends on the specifics of the problem, but you should start here: http://en.wikipedia.org/wiki/Cylinder_stress