Free Workshop in English Language
Materials Testing Institute
University of Stuttgart
Germany, 16-17 June 2025
Professor Ali Fatemi, The University of Memphis, Memphis-TN, USA
The lectures for the workshop consist of four parts consisting of:
1) introduction to multiaxial fatigue
2) basic concepts and models
3) advanced life prediction models
4) applications
In the introduction, multiaxial stress states and their relevance to fatigue design will be reviewed first. Then, in-phase vs out-of-phase multiaxial stresses and their attributes are reviewed. In the basic concepts and models part, multiaxial damage mechanisms, cyclic deformation, classical multiaxial damage parameters, and fracture mechanics applications are reviewed. Then, for the advanced life prediction models, first multiaxial fatigue models are classified, followed by the critical plane models and their characteristics. This is followed by in-depth discussion of the Fatemi-Socie model, including a hybrid approach considering incorporation of this model in a fracture mechanics framework for life predictions. Finally, for applications, features needing consideration in multiaxial fatigue design such as the effect of notches and variable service load histories are presented. Due to recent interest in additive manufactured metals, some experimental data and models for multiaxial fatigue of these metals will also be presented.
Agenda
Day 1
16.06.2025
09:00 – 09:15
09:15 – 10:15
10:15 – 10:30
10:30 – 10:45
10:45 – 11:45
11:45 – 12:00
12:00 – 13:00
13:00 – 14:30
14:30 – 14:45
14:45 – 16:15
16:15 – 16:30
16:30 – 17:00
Greetings and introduction
1st lecture on Multiaxial Fatigue
Q&A and discussions
Coffee break
2nd lecture on Multiaxial Fatigue
Q&A and discussions
Lunch break
PhD worksession 1
Coffee break
PhD worksession 2
Coffee break
Concluding remarks and end of first day
Day 2
17.06.2025
08:30 – 10:00
10:00 – 10:15
10:15 – 11:45
11:45 – 12:00
12:00 – 13:00
13:00 – 14:00
14:00
PhD worksession 3
Coffee break
PhD worksession 4
Concluding remarks
Lunch break
Laboratory visit
End of the workshop
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Our Team
About our speaker
Dr. Ali Fatemi
Ring Industries Professor and Department Chair, Fellow of ASME
Department of Mechanical EngineeringThe University of Memphis
Dr. Fatemi received his B.S. and M.S. degrees in structural analysis and design and his Ph.D. in Mechanical Engineering in 1985, all from The University of Iowa. He was on the faculty of Mechanical Engineering at Purdue University-Fort Wayne (1985-1987), and then on the faculty of Mechanical, Industrial and Manufacturing Engineering at the University of Toledo (1987-2017), where he was a Distinguished University Professor before moving to the University of Memphis in 2017. Dr. Fatemi currently holds the position of Ring Industries Endowed Professor and Mechanical Engineering Department Chair at the University of Memphis.
Dr. Fatemi is an internationally recognized scholar in the field of fatigue and fracture of engineering materials and structures. He has directed theses and dissertations of more than 60 students at the master and doctoral levels, as well as working with 10 post-doctoral fellows and Fulbright scholars. Dr. Fatemi and his students have published about 300 papers dealing with fatigue and fracture. His research is both at the basic level helping to understand fundamental fatigue damage mechanisms, as well as in the applied areas facilitating applications of the knowledge learned to the design of engineering components and structures. There are more than 25000 citations to his publication with h-index of 71 in Google Scholar. The Fatemi-Socie fatigue model is the best-known critical plane multiaxial fatigue theory with more than 2000 citations.
Dr. Fatemi has co-authored the second edition of a popular textbook Metal Fatigue in Engineering published by Wiley and used at over 50 universities in the US, as well as many practitioners worldwide. He has had sponsored research projects from many companies, foundations, and government agencies. His current research and publications are focused on fatigue of additively manufactured metals, weldment fatigue, fretting fatigue, and defect-based fatigue life prediction methodologies.
Dr. Fatemi is a Fellow of the American Society of Mechanical Engineers (ASME), a member of the American Society for Testing and Materials (ASTM) Committee E-8 on Fatigue and Fracture, a member of the American Academy of Mechanics, and an honorary member of the German Association for Materials Research and Testing (DVM). He is on the editorial boards of the International Journal of Fatigue, Theoretical and Applied Fracture Mechanics, and Fatigue and Fracture of Engineering Materials and Structures. He has received many awards for his research and has been a Keynote Speaker at many international conferences on fatigue and fracture.
About the MPA
The MPA can look back on over 135 years of history.
The materials testing institute was founded in 1884 at the instigation of Karl von Bach at the then Royal Württemberg Polytechnic in Stuttgart, where Bach was Professor of Mechanical Engineering.
In 1897, the associated engineering laboratory was built at the TH Stuttgart in Stuttgart-Berg. The close connection with teaching at the TH Stuttgart gave the MPA and the university a good reputation in industry. An additional laboratory building was built in 1907.
The Venue
MPA University of Stuttgart
Room 7.010 (7th floor)
Pfaffenwaldring 32
70569 Stuttgart
Germany
Phone: +49 711 / 685 – 63058