Fracture Mechanics and Fatigue of Structures
CIVIL-704 / 2 credits
Teacher(s): Brühwiler Eugen, Nussbaumer Alain
Language: English
Remark: Cancelled fall 2021, replacement course spring 2022, Fatigue and fracture of structures, 3 credits
Summary
Determination of stress intensity factors and application of fracture mechanics to structures made of different materials.Ability to apply fracture mechanics to predict brittle fracture+ compute fatigue life of structural elements.Understanding of the influencing parameters+methods to determine them
Content
Fracture micromechanisms in steels, Griffith and Irwin theories, concept of stress intensity factor, fracture toughness and its determination
- Plated steel structures : Fatigue strength of welded steel elements, size effect, residual stresses influence, application of fracture mechanics to fatigue
- Tubular steel structures : Hot spot stress method for fatigue design, welded vs cast steel joints
- Structural glass: Subcritical crack growth, predicting time to failure
- Reinforced concrete structures : Fracture mechanics, fracture of concrete, size effect, brittle failure, fatigue of reinforced concrete elements, evaluation of fatigue safety of bridge decks, fracture due to dynamic effects.
- R-UHPFRC structures: fracture and fatigue properties of Ultra-High Performance Fiber Reinforced Composites, structural implications, design provisions.
Keywords
Fracture mechanics, fatigue, steel structures, concrete structures, structural safety
Learning Prerequisites
Required courses
Mechanics of structures and materials
Teaching methods
Ex-cathedra lectures and exercices
Assessment methods
Oral exam
In the programs
- Exam form: Oral (session free)
- Subject examined: Fracture Mechanics and Fatigue of Structures
- Lecture: 20 Hour(s)
- Practical work: 8 Hour(s)
- Exam form: Oral (session free)
- Subject examined: Fracture Mechanics and Fatigue of Structures
- Lecture: 20 Hour(s)
- Practical work: 8 Hour(s)