• NEO

Pipe Stress Analysis - Career Program

Learning objectives

  • Define and evaluate the pipe stress analysis process.

  • Understand pipe stress analysis.

  • Learn how to model a piping system and pressure design basics.

An Introduction

Pipe stress analysis is an analytical method to determine how a piping system behaves based on its material, pressure, temperature, fluid, and support. Pipe stress analysis is not an accurate depiction of the piping behavior, but it is a good approximation.

There are many piping codes and standards that could be used during a pipe stress analysis depending on the application (power, process chemical, gas distribution) and location (country or local jurisdiction). However, to keep things simple, this discussion is based on American Society of Mechanical Engineers (ASME) B31.1 Power Piping. The physics of pipe stress analysis does not change with piping code.

Pipe stress analysis should be done primarily to provide safety to the public, whether you are designing a building heating system or a high-pressure gas line in a refinery. Another reason a pipe stress analysis is performed is to increase the life of piping. Most engineers won’t consider a piece of pipe to be equipment, but it is no different than a pump. Both have moving parts and must be designed and maintained properly to ensure a proper life. Pipe stress analysis also is used to protect equipment, because a pipe is nothing more than a big lever arm connected to a delicate piece of equipment. If not properly supported and designed, it can have devastating effects on that equipment.

There are several common reasons that could warrant a pipe stress analysis.

  • Elevated temperatures (>250°F).

  • Pressure mandated (300 psig).

  • Sensitive equipment connections.

  • Large D/t ratio (>50).

  • Piping subject to external pressures.

  • Critical services.


Introduction to Pipe Stress Analysis.

  • Need for stress analysis.

  • Consequences of over stress.

  • 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 for 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.

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 Stresses at “hot” and “cold” conditions, that is, Sh and Sc.

  • Code Tables for Allowable Stresses.

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.


Program Duration: 90 Hrs.

Course Fees: INR 30000 [Inclusive of taxes]

Location: Thane [Mumbai]

Program Start Date: 26th Jan 2020


Interested candidates can enroll by clicking here or call us or Whatsapp your query on 8779674727. Click here to connect with us on Whatsapp.


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