Lecture 1: Introduction and Irwin’s equations Linear elastic stress, Hooke’s law, Mode I/II/III loading, Singularities and stress fields, Irwin’s equations, Shape factor
Lecture 2: Fracture toughness Static assessment according to LEFM, fracture toughness, plane stress vs. plane strain problem.
Lecture 3: Scale effect and limitations of LEFM Scale effect, definition of critical distance a0, continuum vs. linear elastic fracture mechanics.
Lecture 4:  LEFM and fatigue loading Fundamental definitions, crack growth rate, Paris’ diagram and Region I, II, and III, fatigue assessment according to LEFM.