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  • Online Course for Piping Engineers

    Pipe Stress Analysis according to ASME B31.3 and EN 13480

    • Self-Paced
    • 21h 00m
    • ASME B31.3
    • EN 13480
    • Calculations
  • Learn to calculate pipe stresses by hand, verify software results, and build engineering judgment using ASME B31.3 and EN 13480 code equations through worked examples and real system analysis.


    • For piping engineers, mechanical engineers, and pipe designers working on process piping projects.
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Lesson Previews

Why Take This Course?

  • Master Code-Compliant Analysis

    Apply ASME B31.3 and EN 13480 stress equations to calculate wall thickness, sustained loads, occasional loads, thermal expansion, and fatigue—and understand why the codes require each calculation.

  • Build Engineering Judgment

    Perform pipe stress calculations by hand using fundamental physics, enabling you to verify software results, identify errors, and solve problems when analyses don't behave as expected.

  • Prevent Real Failures

    Learn failure mechanisms in bends, reducers, tees, flanges, and nozzles through real system examples, and apply Stress Intensification Factors (SIFs) to assess critical components correctly.

What Will You Learn?

    • Calculate hoop, axial, and radial stresses in pressurized pipes and determine minimum wall thickness according to ASME B31.3 and EN 13480 using pressure, diameter, and allowable stress values
    • Perform complete pipe stress analysis by hand including sustained loads, occasional loads, thermal expansion, and fatigue using code stress equations and allowable value tables
    • Apply Stress Intensification Factors (SIFs) to evaluate bends, reducers, and branch connections where standard stress calculations underestimate actual stress concentrations
    • Evaluate nozzle and flange adequacy under combined pressure, weight, and thermal loads using WRC 107/297 methods and code-compliant flange analysis procedures
    • Design support systems with correct spring supports, steel structures, gaps, and friction considerations that balance operational requirements with thermal expansion flexibility
    • Identify overstressed locations from analysis results and implement solution strategies, including expansion loops, bellows, support modifications, or design changes
    • Distinguish between load cases (sustained, occasional, operating, expansion, fatigue) and apply appropriate code allowables for each failure mechanism
    • Interpret pipe stress software analysis results and verify that calculations match hand calculation methods for fundamental understanding
  • Ready to Master Pipe Stress Fundamentals?

    Learn code-compliant stress calculations, failure prevention, and engineering judgment from industry experts.

Who Is This Course For?

  • Junior Piping Engineers

    Starting pipe stress careers (0-3 years experience) and building foundational understanding of ASME B31.3 and EN 13480 code requirements

  • Pipe Stress Software Users

    Running CAESAR II, AutoPIPE, or similar software and wanting to understand the calculations behind the analysis results

  • Mechanical & Pipe Designers

    Working on process piping projects and needing to verify stress calculations, select appropriate supports, and prevent common failure modes

  • Program & Details

    • 1. Welcome & Your instructor
      2. Content overview
      3. How to use this course
      4. Personal Certificate requirements
      5. Questions Forum

    • 1. Module introduction
      2. Basic definitions and relations
      3. Geometric properties of piping
      4. Typical properties of piping
      5. Forces and moments on pipes
      6. Introduction to stress
      7. Pipe stress directions
      8. Hoop stress
      9. Axial stress
      10. Radial stress
      11. External forces and bending moments
      12. Shear stress
      13. Stress/strain theory
      14. Piping codes
      15. Introduction to code stress
      16. Material Codes
      17. Allowable values according to codes
      18. Summary

    • 1. Module introduction
      2. Basic definitions and relations
      3. Straight pipe
      4. Thin walled vs thick walled
      5. Bends, Reducers and Tees
      6. Flanges
      7. Valves
      8. Nozzles
      9. Summary

    • 1. Module introduction
      2. Basic definitions and relations
      3. Support types
      4. Stiffness, gaps and friction
      5. Spring supports
      6. Steel structures
      7. Process conditions
      8. Imposed displacements
      9. Occasional loads
      10. Supporting a simple system
      11. Summary

    • 1. Module introduction
      2. Basic definitions and relations
      3. Load types
      4. Failure mechanisms
      5. Sustained Loads
      6. Occasional loads
      7. Operating Loads
      8. Expansion
      9. Fatigue
      10. Load cases
      11. Summary

    • 1. Module introduction
      2. Basic definitions and relations
      3. Flexibility analysis
      4. Stress Intensification Factors (SIFs)
      5. Code stress definition
      6. Overview code stress & allowable values
      7. Nozzle check
      8. Flange check
      9. Support check
      10. Displacements
      11. Piping stress software
      12. Summary

    • 1. Module introduction
      2. Basic definitions and relations
      3. Solution Process
      4. Identification of overstressed locations
      5. Application of more detail in model
      6. Design improvements
      7. Expansion loops
      8. Bellows
      9. Summary

    • 1. Module introduction
      2. Basic definitions and relations
      3. Reporting a Pipe Stress Analysis
      4. Fiberglass Reinforced Plastic (FRP) Piping
      5. Buried piping systems
      6. Water hammer phenomena
      7. Summary

    • 1. Congratulations
      2. Course evaluation survey
      3. Your Personal Certificate
      4. Rate this course
      5. Related courses

About The Instructor

  • Dynaflow Research Group

    Dynaflow Research Group is a specialized engineering consultancy with deep expertise in pipe stress analysis, dynamic systems, and code-compliant design. The team has performed pipe stress calculations across chemical, petrochemical, and petroleum industries worldwide—including buried piping, onshore and offshore pipelines, and systems using both steel and fiberglass reinforced materials. Their expertise in ASME B31.3, EN 13480, and fundamental stress analysis ensures this course is grounded in real-world engineering challenges.

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