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93847 - Fatigue And Damage Tolerance

Academic Year 2020/2021

                
                        Docente:
                        Reyndert Christiaan Alderliesten
                    
                        Credits:
                        6
                    
                        SSD:
                        ING-IND/04
                    
                        Language:
                        English
                    
                        Moduli:
                        
                            Reyndert Christiaan Alderliesten
                            (Modulo 1)
                        
                            John Alan Pascoe
                            (Modulo 2)
                        
                        Teaching Mode:
                        
                                    Traditional lectures (Modulo 1)
                                
                                    Traditional lectures (Modulo 2)
                                
                            Campus:
                            Forli
                        
                            Corso:
                            Second cycle degree programme (LM) in
                            Aerospace Engineering (cod. 5723)

                                Also valid for
                                
                                    Second cycle degree programme (LM) in
                                    
                                        Aerospace Engineering (cod. 5723)
                                    
                            Teaching resources on Virtuale

Learning outcomes

The student becomes familiar with the advanced methods for the evaluation of stress and strain field in aerospace structures; he/she learns and applies the main methods for the conceptual and preliminary design of aircraft. He/she also acquires in-depth knowledge of the Damage-Tolerance methodology used in the design of aerospace structures.

Course contents

Introduction to Fatigue (fatigue as a phenomenon; stress concentrations; residual stresses; fatigue properties of metallic and composite materials; fatigue strength of notched specimens, residual strength).
Fatigue damage mechanisms (initiation, crack growth, delamination growth, transverse matrix cracking, fibre failure).
Analysis methods (stress concentration factors, stress intensity factors; energy balance approaches, strain energy release rates).
Fatigue loading (Load Spectra, Fatigue under Constant- & Variable-Amplitude Loading).
Special Fatigue Conditions (surface treatments; fretting corrosion; corrosion fatigue; high-temperature and low-temperature fatigue, moisture ingress).
Fatigue and Damage Tolerance of Aircraft Structures: Regulations, tests, scatter, application of fatigue and damage tolerance methods.

Readings/Bibliography

J. Schijve, Fatigue of Structures and Materials, 2nd edition, 2009, Springer Science+Business Media, B.V., ISBN-13: 978-1-4020-6807-2 e-ISBN-13: 978-1-4020-6808-9

Teaching methods

Self-study using the Online Course Material on TUDelft's Brightspace together with weekly plenary instruction sessions and discussions with course instructors.

Assessment methods

Written exam & ungraded assignments

Office hours

See the website of Reyndert Christiaan Alderliesten

See the website of John Alan Pascoe