Input variables

Generic variables

These variables can be found in virtually all reports as input variables

Design Pressure – Pd
Pressure assumed to be present in the component according to the design terms
Design Temperature – Td
Temperature assumed to be present in the component according to the design terms
Material
Name of selected material used for the construction of the component

Specific variables

These variables are component specific

Outside Diameter – De
Outside diameter of the attached part. The diameter runs from the outside of the wall to the opposite outside of the wall, through the center of the circle.
Nominal Thickness – dn
Thickness ‘as is’, meaning it is the design thickness taking into account corrosion and tolerance.
Corrosion – Ca
Amount of thickness that accounts for the possible effects of corrosions.
Tolerance – tol
Tolerance in thickness for production
Strength reduction coefficient – z
Effectiveness of the strength, depending on whether joints are seamless, welded, or expected to perform worse than the base material properties
Length tangent to tangent – L
Length of the straight part of the pipe (equals the unsupported length of the pipe)
Pipe
Pipe

Calculated Values

Allowable Stress at Temperature – f
Stress in the component at which it is still allowed (without failure) to use the component
Allowable stress at 20 °C – ft
Stress in the component at which it is still allowed (without failure) to use the component at 20 °C ambient temperature
Nominal Required Thickness – drn
Based on the input, this is the calculated thickness that is required to sustain the loads. The nominal value should be smaller than the nominal design thickness.
Minimum strength reduction coefficient isolated openings – zmin
Minimum required effectiveness of the strength in the opening.
Minimum distance isolated openings – l3
Minimum required distance between openings to consider them isolated. See D0501.
Maximum unreinforced opening diameter – Max(Di2, D'i2)
Maximum allowed diameter for an opening without reinforcement. See D0501.
Maximum Allowable Working Pressure – MAWP
The maximum pressure at which the component can be used in operation. This value should be larger than the design pressure.
Design margin – Pd / MAWP
Ratio of the design pressure to MAWP
Maximum Allowable Test Pressure – MATP
The maximum pressure at which the component should be tested and survive.

Scope errors

Design temperature material is out of scope.
The material properties are not available at the design temperature.
Wall thickness is out of scope: required d ≤ 0.3 Di
This code determines for pipes a maximum thickness.
Wall thickness cone is out of scope: required d ≤ 0.3 Di / Cos(α)
This code determines for cones a maximum thickness.
Cone angle is out of scope: required α ≤ 70°
This code determines a maximum cone angle.

Errors

Can’t find material ‘MaterialName’ in database
Material could not be found in database. Select an existing material name, or select another material via the material selection window.
Insufficient wall thickness
Wall thickness is insufficient to bear the applied loads. Increase the wall thickness.