Fracture Mechanics (In-Person)
Course Type:
In-Person
Course Number:
IPPD268Language:
Gain a practical understanding of fatigue and fracture calculations using the latest methodologies, including weight functions and the FAD approach.
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Providing a practical understanding of fatigue and fracture calculations, this course is intended for engineers who are required to perform such calculations, or who specify or evaluate testing and draft fatigue or fracture portions of design requirements. It covers the latest methodologies such as weight functions and the failure assessment diagram (FAD) approach. Related subjects such as damage tolerance analysis, reliability, and risked-based inspection will also be discussed.
By participating in this course, you will learn how to successfully:
- Explain the underlying assumptions and limitations of fracture mechanics
- Describe the process for material selection for fatigue and fracture resistance
- Explain how to perform simple to moderately complex fracture mechanics calculations
- Identify codified procedures for flaw evaluation
Who Should Attend
Engineers who work with mechanical design, mechanics and structures as well as those involved in testing and equipment fabrication.
Course Materials (included in purchase of course):
Digital course notes via ASME’s Learning Platform
Supplemental Course Materials (not included with course, purchase separately)
Recommended Textbook, Fracture Mechanics: Fundamentals and Applications, written by Ted L. Anderson (available in eBook and print formats)
Day One
- Introduction – Lecture, video, and discussion
- Video: “The Last of the Liberties”, which documents the brittle fracture of the Liberty Ships in WW II and the resulting birth of fracture mechanics as an engineering discipline.
- Fracture mechanics versus strength-of-materials approach to design against fracture
- Fracture mechanics versus S-N curve approach to design against fatigue failure
- Linear elastic fracture mechanics (LEFM) – Lecture, discussion, and examples
- The Griffith model for cracks
- The energy release rate parameter
- The stress intensity factor (K)
- Crack tip similitude
- Crack tip plasticity
- KIc testing
- Elastic-plastic fracture mechanics – Lecture, discussion, and examples
- Crack tip opening displacement (CTOD) parameter
- J-integral parameter
- JIc and J resistance curve testing
- Similitude under elastic-plastic conditions
Day Two
- Introduction to fatigue crack growth – Lecture, discussion, and examples
- Similitude in fatigue
- Empirical crack growth equations
- Life prediction by numerical integration
- Using crack growth analysis to define inspection intervals
- Advanced topics in fatigue – Lecture, discussion, and examples
- Crack closure
- Linear damage model for variable-amplitude loading
- Retardation and load interaction
- Growth of small cracks
- Environmental cracking – Lecture, discussion, and examples
- Basic principles and terminology in corrosion engineering
- Stress corrosion cracking (SCC)
- Hydrogen embrittlement
- Corrosion fatigue
- Laboratory testing
- LEFM Applications – Lecture, discussion, and examples
- The principle of superposition
- Computing stress intensity factor for polynomial stress gradients
- The weight function method for arbitrary stress gradients
Day Three
- Elastic-plastic applications – Lecture, discussion, and examples
- The EPRI J estimation handbook
- Ductile instability
- The failure assessment diagram (FAD) method
- Incorporating weld residual stresses into the FAD method
- Monte Carlo probabilistic analysis
- Finite element analysis of components with cracks – Lecture, discussion, and examples
- Incorporating a crack into a finite element mesh
- Comparison of methods to compute KI
- Modeling crack growth with finite element analysis
- Fracture mechanisms in metals & alloys – Lecture, discussion, and examples
- Ductile fracture (microvoid coalescence)
- Cleavage fracture
- The ductile-brittle transition region
- Intergranular fracture
- General discussion and course wrap-up
Ted Anderson, Ph.D., P.E.
Consultant, TL Anderson Consulting
Ted L. Anderson, Ph.D., P.E., ASME Fellow, is an internationally recognized expert in fracture mechanics and fitness-for-service methods. He was instrumental in developing the API 579 Fitness-for-Service Standard and continues to serve on the committee.
More Information
In-Person
Conducted in a physical classroom or lab with an instructor and peers.Note: ASME in-person activities will follow the state and local laws, regulations and guidelines regarding COVID-19 applicable to the location of the event. Learn more here
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