Calculate dent force, dent absorbed energy and dent depth for a pipeline or circular tubular structure using either the Ellinas Walker equation. the Wierzbicki Suh equation or the general equation.
The dent can be defined from either the user defined dent depth, user defined dent energy, or user defined dent force. Dent initiation does not occur unless the dent force is greater than or equal to the dent initiation force.
Temperature derating can be calculated using the derating calculation from ASME B31.8 (suitable for steel and low alloy steel materials only).
Tool Input
- schdtype : Line Pipe Schedule Type
- diamtype : Diameter Type
- ODu : User Defined Outside Diameter
- IDu : User Defined Inside Diameter
- wtntype : Wall Thickness Type
- tnu : User Defined Wall Thickness
- walltype : Design Wall Thickness Type
- syutype : Line Pipe Stress Type
- mattype : Yield Stress Type
- SMYSu : User Defined Specified Minimum Yield Stress
- tfactype : Temperature Derating Type
- ftu : User Defined Temperature Reduction Factor
- denttype : Dent Calculation Type
- loadtype : Load Type
- du : User Defined Dent Depth
- Eu : User Defined Dent Energy
- Fu : User Defined Dent Force
- tc : Corrosion Allowance
- Td : Design Temperature
Tool Output
- E : Dent Energy
- Ei : Dent Initiation Energy
- F : Dent Force
- Fi : Dent Initiation Force
- ID : Nominal Inside Diameter
- OD : Nominal Outside Diameter
- d : Dent Depth
- d/D : Dent Depth Over Diameter Ratio
- di : Dent Initiation Depth
- dot : Diameter Over Design Wall Thickness Ratio
- ft : Temperature Derating Factor
- sy : Derated Yield Stress
- td : Design Wall Thickness
- tn : Nominal Wall Thickness