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Ansys Asme Pipe Stress Analysis - fast question
Ansys Asme Pipe Stress Analysis - fast question
Hi all
please check the following link: http://karducci.altervista.org/PipeStress.pdf
as you can see it's a pipe system modeled with shell181 elements subject to internal pressure (only)
i need help about the membrane stress i get at the nozzle intersection
- it should be considered local membrane stress so the allowable stress limit should be 1.5S, is it correct?
- or maybe, since it's a very high geometry discontinuity location, i can consider the allowable stress limit equal to 3S?
i have been increasing the main pipe and the nozzle equivalent tickness to low down the membrane stress
but the solution i'm getting out is not cheap and hard to build
any nice tip would be very appreciated
thanks
please check the following link: http://karducci.altervista.org/PipeStress.pdf
as you can see it's a pipe system modeled with shell181 elements subject to internal pressure (only)
i need help about the membrane stress i get at the nozzle intersection
- it should be considered local membrane stress so the allowable stress limit should be 1.5S, is it correct?
- or maybe, since it's a very high geometry discontinuity location, i can consider the allowable stress limit equal to 3S?
i have been increasing the main pipe and the nozzle equivalent tickness to low down the membrane stress
but the solution i'm getting out is not cheap and hard to build
any nice tip would be very appreciated
thanks
ANSYS Case Study: Axisymmetric Analysis of A Pressure Vessel The pressure vessel shown below is made of cast iron (E = 14.5 Msi, ν = 0.21) and contains an internal pressure of p = 1700 psi. The cylindrical vessel has an inner diameter of 8 in with hemispherical end caps. The end caps have a.
- The pressure vessel is one of a large number of plant components for which stress analyses must be performed. A pressure vessel experiences mainly two types of stresses, primary stresses and secondary stresses. Primary stresses are because of pressure inside pressure vessel and secondary stresses are because of thermal loading.
- The pressure use in the design of a vessel is call design pressure. It is recommended to design a vessel and its parts for a higher pressure than the operating pressure. A design pressure higher than the operating pressure with 10 percent, whichever is the greater, will satisfy the requirement.