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  2. Maximum allowable operating pressure - Wikipedia

    en.wikipedia.org/wiki/Maximum_allowable...

    Maximum Allowable Operating Pressure (MAOP) is a pressure limit set, usually by a government body, which applies to compressed gas pressure vessels, pipelines, and storage tanks. For pipelines, this value is derived from Barlow's Formula , which takes into account wall thickness, diameter, allowable stress (which is a function of the material ...

  3. Barlow's formula - Wikipedia

    en.wikipedia.org/wiki/Barlow's_formula

    The formula is also common in the pipeline industry to verify that pipe used for gathering, transmission, and distribution lines can safely withstand operating pressures. The design factor is multiplied by the resulting pressure which gives the maximum operating pressure (MAOP) for the pipeline.

  4. Specified minimum yield strength - Wikipedia

    en.wikipedia.org/wiki/Specified_Minimum_Yield...

    It is an indication of the minimum stress a pipe may experience that will cause plastic (permanent) deformation. The SMYS is required to determine the maximum allowable operating pressure (MAOP) of a pipeline, as determined by Barlow's Formula which is P = (2 * S * T)/(OD * SF), where P is pressure, OD is the pipe’s outside diameter, S is the ...

  5. Piping - Wikipedia

    en.wikipedia.org/wiki/Piping

    Process piping and power piping are typically checked by pipe stress engineers to verify that the routing, nozzle loads, hangers, and supports are properly placed and selected such that allowable pipe stress is not exceeded under different loads such as sustained loads, operating loads, pressure testing loads, etc., as stipulated by the ASME B31, EN 13480, GOST 32388, RD 10-249 or any other ...

  6. Permissible stress design - Wikipedia

    en.wikipedia.org/wiki/Permissible_stress_design

    Wood, steel, and other materials are still frequently designed using allowable stress design, although LRFD is probably more commonly taught in the USA university system. In mechanical engineering design such as design of pressure equipment, the method uses the actual loads predicted to be experienced in practice to calculate stress and ...

  7. Choked flow - Wikipedia

    en.wikipedia.org/wiki/Choked_flow

    The above equations calculate the steady state mass flow rate for the pressure and temperature existing in the upstream pressure source. If the gas is being released from a closed high-pressure vessel, the above steady state equations may be used to approximate the initial mass flow rate. Subsequently, the mass flow rate decreases during the ...

  8. NFL playoff scenarios: Which teams can clinch berths in Week 16?

    www.aol.com/nfl-playoff-scenarios-teams-clinch...

    One team has already joined the NFL playoff picture in Week 16, and a few more could be on the way. Here are the clinching scenarios remaining.

  9. Structural engineering theory - Wikipedia

    en.wikipedia.org/wiki/Structural_engineering_theory

    Strength depends upon material properties. The strength of a material depends on its capacity to withstand axial stress, shear stress, bending, and torsion.The strength of a material is measured in force per unit area (newtons per square millimetre or N/mm², or the equivalent megapascals or MPa in the SI system and often pounds per square inch psi in the United States Customary Units system).