Ogni modulo equivale a 3 crediti ECTS. È possibile scegliere un totale di 10 moduli/30 ECTS nelle seguenti categorie:
- 12-15 crediti ECTS in moduli tecnico-scientifici (TSM)
I moduli TSM trasmettono competenze tecniche specifiche del profilo e si integrano ai moduli di approfondimento decentralizzati. - 9-12 crediti ECTS in basi teoriche ampliate (FTP)
I moduli FTP trattano principalmente basi teoriche come la matematica, la fisica, la teoria dell’informazione, la chimica ecc. I moduli ampliano la competenza scientifica dello studente e contribuiscono a creare un importante sinergia tra i concetti astratti e l’applicazione fondamentale per l’innovazione - 6-9 crediti ECTS in moduli di contesto (CM)
I moduli CM trasmettono competenze supplementari in settori quali gestione delle tecnologie, economia aziendale, comunicazione, gestione dei progetti, diritto dei brevetti, diritto contrattuale ecc.
La descrizione del modulo (scarica il pdf) riporta le informazioni linguistiche per ogni modulo, suddivise nelle seguenti categorie:
- Insegnamento
- Documentazione
- Esame
The course deals with fundamental and technical issues associated with designing and maintaining structures that resist failure from cyclic loading. Students will be taught the principles of fatigue testing and analyzing fatigue failures of materials, addressing the questions of how fatigue behaviour is characterized, how fatigue failure is predicted, which physical mechanisms are responsible for fatigue initiation and propagation in various materials, with particular attention to metals and structural alloys, and how such behaviour is related to the microstructure of the material.
This course will also introduce key applications of fatigue design in industry, including failure analysis, fatigue life calculations, experimental techniques and destructive and non-destructive methods of damage detection and characterization.
Requisiti
- Mathematics, Calculus and Mathematical Analysis
- Linear algebra and analytical geometry
- Material Science and Engineering
- Solid Mechanics
- Basics of mechanics of composite materials
- Basics of computational mechanics, including finite element methods
Obiettivi di apprendimento
- Understand the theory of fracture mechanics applied to brittle, ductile and quasi-brittle materials;
- Know the main experimental techniques for the characterization of the properties that characterize the crack onset and propagation;
- Understand the fatigue phenomenon of materials, including the factors that affect the residual life of structures under cyclic loading and analytical methods for the analysis of fatigue problems;
- Use computational mechanics as a tool to solve fracture mechanics problems;
- Apply the knowledge of fatigue and fracture mechanics for the design of structures and investigation of the causes of structural failure;
Contenuti del modulo
Introduction to Fracture Mechanics
Linear Elastic Fracture mechanics
- Griffith’s analysis, 1st law of thermodynamics and crack growth, Energy release rate (ERR)
- Stress analysis and stress intensity factor (SIF). Failure modes (mode I, II and III)
- Relation between the SIF and ERR
- Mixed-mode propagation
- Plane stress, plane strain, R-curve, and stability of the propagation
- Experimental determination of the Fracture toughness: standard and non-standard methods
Elasto-plastic fracture mechanics
- Crack opening displacement (COD)
- J integral
- Relation between J-integral, COD and ERR
Fracture in composite materials
- Interlaminar fracture
- Intralaminar fracture
- Failure criteria
Fatigue of metals and composites
- Fatigue limit
- Factors affecting the crack propagation
- Fatigue of composite materials
- Experimental assessment of the fatigue behaviour
Computational fracture mechanics
- Determination of the SIF
- Determination of the J-Integral
- Virtual Crack Closure technique
- Cohesive elements
Metodologie di insegnamento e apprendimento
- Lectures in presence
- Tutorial in presence
- Self-study
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