- 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)
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
Fatigue
Introduction
Fatigue phenomena
Residual stresses
Stress concentration factors
Fatigue properties of materials
Fatigue properties of structures (notched materials)
Surface aspects in fatigue
Scatter in fatigue
Assessment of fatigue damage growth
Fatigue damage growth
Variable Amplitude fatigue
Fatigue in joints
Fatigue in composites
Fatigue in Composites
Environmental effects
Structural Integrity and the aero structure design dilemma
Evolution of Aircraft Fatigue Design
Linear elastic fracture mechanics
Introduction to linear elastic fracture mechanics (LEFM)
Residual Strength
Crack Growth
Limitations of LEFM and dealing with plasticity
Damage Tolerance in aircraft structures
Aircraft Certification Regulations pertaining to Fatigue and Damage Tolerance
Load spectra and load measurements
Fatigue and Damage Tolerance Testing
Practical Issues in Damage Tolerance: Variability of Initial Conditions and Usage
Hybrid composite structures – a case study
Wrap-up
Readings/Bibliography
D. Broek, "Elementary Engineering Fracture Mechanics", Kluwer ed., 2002
D. Broek, "The Practical Use of Fracture Mechanics", Kluwer ed., 1988
J. Schijve, "Fatigue of Structures and Materials", Springer ed., 2009
Teaching methods
Lectures are held by the course teachers. Explicit demonstration of the mathematical approach will be followed by applications to practical aerosapce problems.
Assessment methods
The assessment will be a written exam. Students can practice on the dedicated website where teaching material is available.
Teaching tools
Computer slides by LCD projector are used in addition to the standard blackboard.
Recordings of lectures and practical excercises are available on a dedicated website.
Office hours
See the website of Reyndert Christiaan Alderliesten
See the website of John Alan Pascoe