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FAST-BD53Acad. year: 2024/2025
Theories of deformation and failure of materials of civil engineering structures. Viscoelasticity - creep and relaxation. Basic rheology models and their coupling. Compliance function for concrete.Plasticity models for both uni- and multi-axial stress state. Mathematical description of plastic deformation. Plasticity criteria for material with/without internal friction. Stress concentration around notches. Fundamentals of linear elastic fracture mechanics. Griffith theory of brittle fracture. Energy balance in cracked body, crack stability criterion. Stress state solution in cracked body, modes of crack propagation. Stress intensity factor, fracture toughness. Size effect predicted by linear fracture mechanics. Classical nonlinear fracture models. Nonlinear fracture behaviour, fracture process zone, toughening mechanisms. Models of equivalent elastic crack, effective fracture parameters, resistance curves. Cohesive crack models and their parameters, fracture energy, tension softening. Damage mechanics, Stochastic aspects of failure of quasi-brittle materials/structures.
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