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WCFA'19-PHL
Programme of the Workshop
The course is built in such a way, that no prior knowledge on fatigue analysis is needed. The basic principles of the common fatigue damage estimation are described in the first day, while the lectures of Dr Heuler follow in next two days. In order to better suit the needs of participants and to fit the course better to the level of their knowledge, several variants of the course are provided as shown in the table below.
| Monday Dec 2, 2019 | V1 - Introduction to Fatigue
M. Růžička, J. Papuga, M. Nesládek |
V3 - Complete Course |
| Tuesday-Wednesday Dec 3-4, 2019 | V2 - Audi Experience
P. Heuler |
Topics discussed in individual days follow.
Introduction to Fatigue
This part is covered in variants: Introduction to Fatigue (V1), Complete Course (V3).
| Monday, December 2, 2019 | ||
| 8:00-8:50 | Registration | |
| 8:50-9:00 | Jan Papuga | Welcome info |
| 9:00-9:45 | Milan Růžička | Basics in Fatigue Materials Considerations Loading Considerations |
| 9:45-10:30 | Jan Papuga | Stress-Life Based Fatigue, fatigue limit, factors influencing the S-N curve |
| 10:30-11:00 | Coffee break | |
| 11:00-12:30 | Jan Papuga | Factors Affecting Fatigue Life (various other issues that can be encountered) Strain-Life Based Fatigue (cyclic plasticity, Neuber correction) Processing of Load Records (rainflow, damage accummulation) An example of the workflow |
| 12:30-13:30 | Lunch | |
| 13:30-14:30 | Martin Nesládek | Introduction to Fracture Mechanics and Crack Propagation |
| 14:30-15:00 | Jan Papuga | Introduction to Fatigue Prediction in Welds |
| 15:00-15:30 | Coffee break | |
| 15:30-17:00 | Jan Papuga | Multiaxial Fatigue The Concept of FE Based Fatigue Analysis Available Software Applications Available Data Sources |
Audi Experience Vol. 1
This part is included in all variants except of Introduction to Fatigue (V1).
| Tuesday, December 3, 2019 | ||
| 8:00-8:50 | Registration | |
| 8:50-9:00 | Jan Papuga | Welcome info |
| 9:00-10:30 | Paul Heuler | Statistical Concept of Fatigue Strength Assessment: Load and strength/durability as stochastic variables Distribution and probability density functions Probability of failure resulting from distributed load and durability variables Typical scatter values of metallic components Some remarks on lower limits of fatigue properties |
| 10:30-11:00 | Coffee break | |
| 11:00-12:30 | Paul Heuler | Derivation of Load Spectra and Requirements: Evaluation of load measurements via counting procedures Characterization of load spectra Extrapolation of load measurements and load spectra |
| 12:30-13:30 | Lunch | |
| 13:30-15:00 | Paul Heuler | Load Assumptions and Requirements for Strength and Durability Assessment of Automotive Structures: Definition of basic requirements for characteristic load and strength variables Load measurements – basis for derivation of load requirements caling of load variables for a common evaluation Numerical procedures for load estimates using multi-body-system analyses and FE codes Substantiation of load requirements through field measurements |
| 15:00-15:30 | Coffee break | |
| 15:30-17:00 | Paul Heuler | Standardised Load-Time Histories: Origins of standardised load-time histories Overview and some details of present standardised load-time histories Features of load histories relevant to cumulative fatigue damage Generation and synthesizing of load-time histories Applications – car trailer coupling |
| 19:00-22:00(?) | Informal social meeting with a surprise - Restaurace Na Kotlářce | |
Audi Experience Vol. 2
This part is covered only within variants Audi Experience (V2) and Complete Course (V3).
| Wednesday, December 4, 2019 | ||
| 8:30-10:00 | Paul Heuler | Basic Elements and Specific Aspects of Fatigue Life Prediction Concepts: Local strain – local stress concept Assessment of local stress-strain paths at notches The cumulative damage problem Transferability of fatigue data of materials and joints to components Simplified life prediction exercise for some components |
| 10:00-10:30 | Coffee break | |
| 10:30-12:00 | Paul Heuler | Numerical Strength and Fatigue Life Assessment of Automotive Structures: Further remarks on MBS modelling and simulation The process chain of numerical fatigue assessment Consideration of joining techniques by a sub-model concept Aspects of FE modelling and applications Some hints on the assessment of oscillating componentsk |
| 12:00-13:00 | Lunch | |
| 13:00-13:50 | Jan Papuga | What is FABER, and who is the FABEST |
| 13:50-14:00 | Jan Papuga | Closing the workshop |
Timetables of past volumes
- WCFA'18 & FKM
- WCFA'17 & DFW
- WCFA'16 & VFA
- WCFA'13 & PUM05
- WCFA'11 & PUM04
- WCFA'09 & PUM03
- WCFA'08 & PUM02
papuga@pragtic.com, last update: December 12, 2019
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