Fundamentals of Pipe Stress Analysis with Introduction to CAESAR II

THE WORKSHOP

Piping system design constitutes a major part of the design and engineering effort in any facility. Stress analysis is a critical component of piping design through which important parameters such as piping safety, safety of related components and connected equipment and piping deflection can be addressed. The objective of pipe stress analysis is to prevent premature failure of piping and piping components and ensuring that piping stresses are kept within allowable limits.

This workshop is designed for personnel from a wide range of abilities and backgrounds and will cover the fundamental principles and concepts used in pipe stress analysis. In addition to meeting the needs of design, the course is structured to provide you an in-depth understanding of the engineering principles involved in material selection, application of code criteria and the capabilities and tools incorporated in stress analysis software. The extensive use of case studies and practical exercises during the course of the discussion ensures as comprehensive coverage of the material as possible.

WHAT IS INCLUDED?

  • Receive a certificate of attendance in support of your continuing professional commitment
  • All workshops include the associated hardcopy technical manual
  • Printed workshop handouts
  • Lunch and refreshments
  • Interact and network with workshop attendees and experienced instructors
  • Practical, industry driven content to assist you in your continuing professional development (CPD)
  • Attendees automatically become IDC subscribers and receive exclusive deals and technical content every month

WHO SHOULD ATTEND?

This workshop is designed for personnel who want to understand the engineering principles involved in pipe stress analysis. Those who will benefit the most from this workshop include the following:

  • Chemical (process) engineers
  • Consulting engineers
  • Equipment designers and engineers
  • Mechanical engineers
  • Personnel from EPC (Engineering, Procurement and Construction) companies
  • Piping designers and piping engineers
  • Plant layout and piping design personnel
  • Plant maintenance personnel
  • Project engineers
  • Structural designers and engineers

CONTENT SUMMARY

INTRODUCTION TO PIPE STRESS ANALYSIS

  • Need for stress analysis
  • Consequences of overstress
  • Physical quantities and units used in pipe stress analysis

PIPING MATERIALS

  • Introduction
  • Material classification systems and specifications
  • Common ASTM piping materials
  • Material requirements of codes
  • Selection criteria for materials
  • Piping specifications (piping classes)
  • Material testing and certificates

CODES GOVERNING PIPING DESIGN AND STRESS ANALYSIS

  • ASME B31.3, ASME B31.4 and ASME B31.8
  • Other codes including applicable local codes
  • Role and scope of codes
  • Information available from codes
  • Typical organisation of code material

PRINCIPAL STRESSES AND FAILURE THEORIES

  • Longitudinal, circumferential and radial stresses
  • Principal axes and principal stresses
  • Failure theories:
    • Maximum principal stress failure theory
    • Maximum shear stress failure theory

DESIGN PRESSURE, DESIGN TEMPERATURE AND ALLOWABLE STRESS

  • Definition of design pressure and design temperature
  • Basis for allowable stress
  • Allowable at “hot” and “cold” conditions, that is, Sh and Sc
  • Code tables for allowable stresses

DESIGN OF PIPE WALL THICKNESS FOR INTERNAL PRESSURE

  • Wall thickness design equations – ASME B31.3, ASME B31.4 and ASME B31.8
  • Calculation of Maximum Allowable Working Pressure (MAWP)
  • Pressure – temperature class ratings for flanges
  • Determining appropriate flange pressure class

LOADS ON PIPING SYSTEMS

  • Primary and secondary loads
  • Self-limiting and nonself-limiting characteristics of loads
  • Sustained and occasional loads
  • Static and dynamic loads
  • Bending stresses in pipes
  • Longitudinal stress and torsional stress
  • Code criteria for design

THERMAL STRESSES IN PIPING SYSTEMS

  • Thermal expansion/contraction of materials
  • Stresses due to thermal expansion/contraction
  • Thermal fatigue and cyclic stress reduction factor
  • Design criteria for thermal stresses:
    • Stress Intensification Factors (SIFs)
    • Allowable stress range for thermal expansion
    • Calculation of expansion stress range

PIPE STRESS ANALYSIS SOFTWARE

  • Introduction to CAESAR II stress analysis software:
    • Overview of CAESAR II software
    • Piping input and creation of model
    • Navigation and toolbars
    • Static analysis and output
    • Checking for code compliance

CAESAR II PRACTICAL EXERCISES

  • Piping input – creating the model
  • Running the analysis
  • Output and interpretation of the results
  • CAESAR II practical exercises I and II

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