Design by Analysis Requirements in ASME BPV Code, Section VIII, Division 2 – Alternative Rules
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In-Person
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IPPD121Credits:
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The focus of this course is to provide an understanding of the analytical methods found in Part 5 of Section VIII, Division 2 as well as to convey practical information on how to meet the requirements using Finite Element Analysis (FEA).
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Welcome Back!
The ability to interact with ASME instructors who bring real world experience, examples, and best practices to life in our learning experiences is a major reason learners choose face to face training. Networking with peers is also a valuable part of the time spent together during a course. We are excited to start offering these important courses again in person.
Schedule: This course commences at 8:30 AM and ends at 5:30 PM local time, each day, with breaks scheduled throughout.
May Venue: This course will be held at the The Grand America Hotel in conjunction with ASME Boiler & Pressure Vessel Code Week. Please follow this link for hotel reservations.
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The focus of this course is to provide an understanding of the analytical methods found in Part 5 of Section VIII, Division 2 as well as to convey practical information on how to meet the requirements using Finite Element Analysis (FEA). Discussion on the background of the analysis methods and their application is presented through the ASME Pressure Technology Bulletins, PTB-1-2013 Section VIII - Division 2 Criteria and Commentary and PTB-3-2013 Section VIII - Division 2 Example Problem Manual. The attendees gain an appreciation and understanding of how these analytical techniques can be applied to practical design situations. The class includes detailed example problems that demonstrate how the analytical techniques are to be applied, and their limitations. Detailed FEA models are presented to help illustrate the various analytical techniques.
This course provides an in-depth examination of the techniques used in Design by Analysis (DBA) of pressure vessel design. The course includes discussions on general requirements for numerical simulation using FEA; material modeling requirements for use with FEA; design load combinations for pressure vessel design; design for protection against plastic collapse using elastic stress analysis, limit load, and elastic-plastic stress analysis; background and requirements for the new strain limit criterion; buckling analysis types and differences in design margins; fatigue analysis using smooth bar and welded joint technology in the new structural stress approach; ratcheting assessment using both elastic and elastic-plastic analysis; and a special emphasis on the evaluation of thermal stresses.
By participating in this course, you will learn how to successfully:
- Define the basis and application of the design by analysis techniques to ensure proper vessel design.
- Apply the design by analysis techniques to the evaluation of in–service components through the Life-Cycle Management Process and the relationship to API 579-1/ASME FFS-1 Level 3 Assessments.
- Evaluate the basis of design by analysis techniques and how they compare with other International Pressure Vessel Codes, EN 13445 and PD 5500.
Course Requirements
Participants must bring a laptop to class.
Who Should Attend
This course is intended for pressure vessels engineers working for Owner-Users, manufacturers or engineering and design construction firms in the refining, petrochemical, and other comparable industries that desire a practical understanding of one of the major areas of the new Division 2 of ASME Boiler and Pressure Vessel Code Section VIII.
This course is structured on the assumption that participants have a basic understanding of ASME Boiler & Pressure Vessel Code Section VIII Division 2 and FEA.
Supplemental Course Materials (not included with course, purchase separately)
- Laptop with Microsoft Excel
- Calculator
A Certificate of Completion will be issued to registrants who successfully complete the course.
Day One
Background and Development of Section VIII Division 2
- Organization of VIII-2
- Overview Of VIII-2, Parts 1 through 9
Comparison: VIII-1 vs VIII-2 with a Focus on Cost
- ASME VIII-1 PLUS Construction, (It’s what most refinery & petrochemical companies do!)
- Comparison – ASME VIII-1 vs ASME VIII-2
- Comparison – tmin & The VIII-2 Class 2 Allowable Stress Bases
- Comparison – ASME VIII-1 vs ASME VIII-2 – Summary
References – ASME PTB-1 & PTB-2
Basic Concepts in Section VIII, Division 2, Part 5 - Design by Analysis
- Design-By-Analysis (DBA)
- The Force Method
- Stress Definitions
- Primary Stress & Limits
- VIII-2 Allowable Stress Basis
- Secondary Stress & Limits
- Peak Stress & Limits
- Stress Classification – The Hopper Diagram
- Stress Classification – Nozzles
- Stress Calculations for Code Compliance
Supplemental Information for VIII-2, Part 5 Design-By-Analysis Applicability
- Applicability
- Numerical Analysis
- Numerical Analysis & Material properties
- Material Properties
Protection Against Plastic Collapse
- Overview
- Elastic Stress Analysis Method
- Limit Load Analysis Method
- Elastic-Plastic (EP) Analysis Method
- Stress Measure for Multiaxial Stress States
- Elastic Stress Analysis Method – Example 1
- Limit Load Analysis Method – Example 1
- Elastic-Plastic (EP) Analysis Method – Example 1
- Comparison of Methods – Example 1
- Example 2
Protection Against Local Strain
- Overview
- Elastic Stress Analysis Method
- Elastic-Plastic (EP) Analysis Method
Day Two
Design for the Protection of Buckling
- The Lecture Covers
- What is Buckling?
- Bifurcation or Eigenvalue Analysis
- Buckling Analysis Options
- Type 1 Buckling Analysis
- Design Margin
- Effects of Imperfections On Buckling Loads
- Type 2 Buckling Analysis
- Type 3 Buckling Analysis
- Load Cases in Buckling Analysis
- Example
- References
Design for the Protection of Fatigue
- Definition
- Fatigue Basics
- VIII-2 Fatigue Analysis – Overview
- Fatigue Screening
- Fatigue Assessment Methods
- Fatigue Assessment Methods – Comparison
- Fatigue Assessment Methods – Examples
- Fatigue Assessment Methods – References
Development Of The ASME Smooth Bar Fatigue Curves
The Infamous Ke and Kv Factors
Day Three
Fundamentals of Ratcheting for Design by Analysis
- Ratcheting Definition
- Ratcheting Overview
- Ratcheting Assessment – Elastic Stress Analysis
- Ratcheting Assessment – Bree Diagram
- Ratcheting Assessment – Bree Diagram – Loading Conditions
- Ratcheting Assessment – Bree Diagram – Effect of Yield Stress
- Ratcheting Overview – Elastic-Plastic Stress Analysis
- Elastic-Plastic Modeling of Ratcheting Using FEA
- Cyclic Plasticity
- Ratcheting Summary
- References - Ratcheting
Summary of Section VIII Division 2 Code Case 2605
- Background of ASME VIII-2 Code Case 2605 (CC2605)
- Technical Background of CC2605
- Highlights of CC2605
- Modifications to CC2605
- Example Problem
What’s New in Fatigue – see API 579-1/ASME FFS-1, Part 14
Fatigue Analysis Using A Fracture Mechanics Approach
Material Toughness Requirements Using A Fracture Mechanics Approach
- Brittle Fracture Overview
- VIII-2 Toughness Rules
- Using Fracture Mechanics To Determine the MDMT
- Technical Basis Of VIII-2 Toughness Rules
- Summary
David A. Osage, ASME Fellow, P.E.
President and CEO of The Equity Engineering Group, Inc.
David A. Osage, ASME Fellow, P.E. is internationally recognized for his expertise in the design of new equipment and as an industry expert and leader in the development and use of FFS (Fitness-for-Service) technology.
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