History of Piping Codes
- Types of ASME codes
- “Design by Rule” codes
- History of the B31 Code of Pressure Piping
- Computer Aided Analysis
Piping failure modes
- Types of pressure technology stress
- Allowable stresses for different types of stresses
- “Design by Analysis” codes (Discuss reference paper)
- Effective sustained stress intensity
- Effective displacement (flexibility) stress intensity
Piping design conditions
- Required service information.
- Design Pressure
- Design temperature
- Weight & Thermal effects
- Environmental loads
Piping design criteria
- Code qualification (stresses, loads, and mitigation)
- Allowable stress basis (design criteria)
- Time dependent allowable stresses
- Allowable internal pressure stress
- Discussion of B31.1 Appendix A Allowable stresses
- Pressure stress limitations
- Allowable variations from design conditions
- Allowable sustained and occasional stress
- Allowable test stresses
- Displacement (cyclic)allowable stresses
- Cumulative Damages
- Load rating (clamps, compression fittings)
- Mitigation of damaging loads
Pressure Design of Straight Pipe
- Qualification of piping components and systems
- Determining Pipe Size
- Discuss Code pressure design (Reference Paper)
- Pressure design allowances
- Special Piping (using inside diameter equation)
Pressure design of piping components
- Standard Components
- Standard joints
- Non- Standard Components (Reference Paper)
- Components to accommodate expansion.
Guarding against piping collapse
- Sustained load (system) stresses
- Design equation
- Criticism of the design equation
- Piping code geometries
- Pressure terms and section moduli
- Axial stresses
- Where to determine stresses
- Occasional load equation
- B31.1 - 2022 equations
Providing adequate piping flexibility
- Fatigue terminology
- Acceptance criteria for types of stress
- Stress range
- Carbon and stainless-steel fatigue curves
- High cycle fatigue
- Fatigue curves for different components
- Stress intensification factor
- Creep-fatigues interaction
- Cold spring
Stress Intensification factors
- B31J-2017
- B31J stress intensification tables
Simplified piping analysis and layout
- Early piping analysis
- Methods of performing flexibility analyses.
- Chart methods
- B31 Code screening method
- Guided cantilever
- Comparison of layouts
- Local overstrain.
- Allowable support reactions
Pipe support design
- Pipe support stress types
- Loads on pipe supporting elements
- Support types
Pipe support design methods
- Pipe used as a support.
- Allowable stresses.
- Standard pipe supports.
- Load rating
- Structural supports
- Special (proprietary) supports
- Example of a dummy leg design
- Variable spring design
- Constant spring design
- Guidelines for pipe supports.
Requirements for specific piping systems
- Non-boiler external piping
Piping Data
- Piping sizes and schedule dimensions
- Socket welding dimensions
- Simplified layout charts