Pipe Stress Analysis

5-1

Pipe Stress Analysis per ASME B 31.3

PROGRAM OVERVIEW

This is a comprehensive program designed to present all major topics relative to the Process Piping Mechanical design, Hydraulic design and Stress Analysis of Process Piping Systems.

It is one of the Unique Training Program which also covers comprehensive Static Stress Analysis of Piping Systems along with CAESAR – II software.

The program duration is 14 days Full time Instruction including concept theory,   calculations, Code requirements, exposure to Industry Leading Pipe Stress Analysis Software (CAESAR – II).

WHO SHOULD ATTEND

Practicing Piping Design/layout Engineers, Piping 3d Cad Engineers, Piping Draftsmen, Piping Stress Engineers.

WHAT YOU WILL LEARN

Upon completion of this course the participant will be able to

Perform Pressure Design/Hydraulic Design Calculations.

Piping Stress Requirements.

Perform Manual Pipe Stress Calculations using formulae, graphs, charts, nomographs.

Use CAESAR II Software to create 3d models of Piping Systems & Perform Static Stress Analysis.

COURSE MAJOR MODULES

I) Piping & Pipeline Systems Design. 

Pressure Design of Process Piping Systems/ Pipelines/ Building Services Piping.

Hydraulic Design of Liquid Piping Systems & Pipelines.

 

II) Pipe Stress Analysis. 

Introduction

Pipe Span Calculations

Expansion Loops & Expansion Joints

Layout Solutions for Weight, Thermal, & Wind Loads.

Sustained Loads

Flexibility Analysis using Code Equations

Occasional Loads

 

III) CAESAR II – Software Static Analysis.

DETAILED PROGRAM DESCRIPTION

I) Piping Systems Design

Scope of ASME B 31.3, B31.4 & B 31.8

ASME B 31.3 Fluid Service Categories.

Design Pressure & Design Temperature for Piping Systems.

P-T Rating Determination of Flanges, Threaded  & Socket Weld Fittings.

Pressure Design of Straight Pipe under Internal Pressure. – Wall thickness Calculations.

MDP – Maximum Design Pressure for Piping Systems

Branch Reinforcements – Reinforcement Pad Calculations.

Pressure Design of Miter Bends – Single & Multiple Miters.

Pressure Design of Blanks.

Pipeline Wall thickness Calculations – B 31.4 / B 31.8.

MAOP – Maximum Allowable Operating Pressure for Pipelines.

Piping Material Selection per ASME Code.

A) Pressure Drop Due to Friction

Velocity Variation in Pipes

Typical Velocities for Water Piping & Other Liquids

Pipe Sizing

Hazen Williams Equation

Darcy Weisbach Equation

Friction Factor

Reynolds Number

Colebrook White Equation

Moody Diagram

Minor Losses in Pipe Fittings – Equivalent Length Method & K-Factor method.

 

B) Pressure & Horse Power Required

Total Pressure Required to Transport – Friction Head, Elevation Head, And Minimum Delivery Pressure.

Elements of Total Dynamic Head – Static Head, Pressure Head, Velocity Head, Friction Head.

Pump Horse Power Required

Cavitation in Pumps.

NPSH Required & NPSH Available for Pumps.

II) Pipe Stress Analysis

Objectives & Definition of Stress Analysis

Piping Loads –  Primary, Secondary, Sustained Loads, Occasional Loads, Static & Dynamic Loads.

Piping Stresses- Primary, Secondary.

Stresses acting in Pipe due to internal Pressure.

Stresses acting in Pipe due to pipe weight.

Critical Line List & its criteria.

Information Required for Stress Analysis.

Occasional Loads

Wind Load.

Seismic Load.

Water Hammer Load.

Theories of Failure.

Requirements of ASME B 31.3 Code – Sustained Loads, Thermal Expansion & Occasional Loads.

Span limitations based on Stress, Deflection & Natural Frequency.

Allowable Pipe Span Calculations.

Suggested Pipe Support Spacing.

Pipe Span Reduction Factor for Elbows, Concentrated Loads etc.

Concept of Thermal Expansion.

Providing Flexibility in Piping.

Minimum Leg Required to Absorb Thermal Expansion.

Stress Nomographs for Pump and Vessel Piping.

Types of Expansion Loops.

Expansion Loop Sizing for Hot Piping

Expansion Loops requirements on pipe racks.

Nozzle Thermal Growth Calculations – pumps, vessels, heat exchangers.

Expansion Joints – Types, Application & Selection.

Bellow Materials, Hydrostatic Test Pressure for Bellows.

Guide Spacing for Expansion Joints.

Severe Cyclic Conditions.

Causes of Pipe Stress.

Solving Concentrated Loads and Reducing Loads on Equipment Nozzles.

Checking Piping Layout in Pipe Racks.

Checking Piping Layout for Reciprocating Equipment.

Checking Piping Layout for Wind Load.

Solutions for piping loads.

Selection of Supports, Location of Supports and Restraints on a Pump Piping Layout.

Thermal Expansion Stress – Se, Code Allowable Thermal Displacement Stress Range Sa.

Stress Range Reduction Factors – f.

Bending & Torsion Stress.

Formal Analysis Requirements.

Inplane & Outplane Bending Moments

Stress Intensification Factors – SIF.

Calculation of Thermal Expansion Stress

Cold Spring.

III) CAESAR – II – Pipe Stress Analysis Software

Introduction.

Piping Input Spreadsheet.

Modelling of Piping Isometrics – Bends, Returns, Reducers, Valves, Loops etc.

Performing Static Analysis.

Load case explanations

Modifying Load Cases.

Hanger Selection.

Set up of SUS, OPE, EXP, HYD, HGR Load cases.

Set up of Wind Load cases.

Set up of Uniform Load cases.

Load Case Editor.

Evaluating API 610 Pump Nozzle Loads.

WRC Nozzle load calculations.

Viewing Reports.

Word/Excel file conversion of reports.

Making/Reviewing unit files.

Importing Lines for stress analysis.

10 Practical Examples – Input, Analysis & Redesign.

how can we help you?

Contact us at the Skillindiarisingtech office nearest to you or submit a business inquiry online.

We were amazed by how little effort was required on our part to have Consulting WP prepare these materials. We exchanged a few phone calls and e-mails, and they… handled the rest.

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Amanda Seyfried
Founder & CEO, Arcade Systems