Fracture Mechanics and Fatigue

Neptun kód: 
BMEEOHSMB11
Kredit: 
4
Oktatott félév: 
3
Típus (féléves, vizsgás): 
exam
Szervezeti egység: 
Leírás: 

The origins of cracks and crack propagation on microstructure level. Complex stress functions for analysis of stress singularities: Kolosov-Mushelisvili-Westergaard solutions. The “K” stress-intensity factor. The Griffith energy condition, the “G” energy parameter. Path-independent integrals, the “J” parameter. Numerical and laboratory experiments to measure fracture parameters and crack propagation in the case of quasi-static and cyclic loads. Analysis of different materials (concrete, wood, etc.). Applications of fracture mechanics for civil engineering structures. Simple and complex structural integrity assessment methods. Fracture mechanical background of the EUROCODE at fatigue design and material toughness properties. Advanced methods to avoid brittle fracture. Estimation of fatigue life of real steel structures.

Literature:
Bojtár I.: Fracture mechanics, Lecture notes, TUB, 2011.
Horváth L.: Applied fracture mechanics on fatigue design and to avoid brittle fracture, Electronic Lecture Notes, TUB, in preparation.Mushelisvili, N.: Some basic problems of mathematical theory of elasticity, P. Nordhoff, 1953.
Anderson, T. L.: Fracture mechanics, CRC Press, 1995.
Ainsworth, R. A. – Schwalbe, K. H.: Fracture of Materials from Nano to Macro, Elsevier/Pergamon Press, 2007
Background documents in support to the implementation, harmonization and further development of the EUROCODES, Scientific and Technical Reports of the Joint Research Centre, European Commission.

Heti óraszám (előadás/gyakorlat/labor): 
3/0/0