Course Details
Theory of elasticity, plasticity and failure
Academic Year 2022/23
DDB034 course is part of 4 study plans
DKC-K Summer Semester 1st year
DPC-K Summer Semester 1st year
DKA-K Summer Semester 1st year
DPA-K Summer Semester 1st year
Linear elastic fracture mechanics LEFM, fracture process zone, applicability of LEFM, nonlinear fracture mechanics, fracture-mechanical parameters of material.
Strain localization, spurious mesh sensitivity, localization limiters, crack band model, nonlocal continuum mechanics.
Constitutive laws for concrete and other quasibrittle materials.
Size effect, deterministic-energetic and statistical explanation, size effect of modulus of rupture.
Modelling using nonlinear fracture mechanics software ATENA and software SARA (stochastic fracture mechanics).
Course Guarantor
Institute
Objective
Theoretical knowledge of numerical modelling of structures made of quasibrittle materials (concrete).
Understanding of aspects of strain localization and size effect.
Students will learn about possibilities of present software tools.
Syllabus
1. Type of materials with respect to softening, introduction into material constitutive laws.
2. Linear elastic fracture mechanics LEFM, fracture process zone, applicability of LEFM.
3. Nonlinear fracture mechanics, fracture-mechanical parameters of material.
4. Strain localization, spurious mesh sensitivity, localization limiters.
5. Crack band model, nonlocal continuum mechanics.
6. Constitutive laws for concrete and other quasibrittle materials.
7. Fracture-plastic model, microplane model.
8. Size effect, deterministic-energetic and statistical explanation.
9. Size effect of modulus of rupture.
10. Fundamentals of damage mechanics.
11. Modelling using nonlinear fracture mechanics software ATENA.
12. Stochastic fracture mechanics.
13. Modelling using software system SARA.
Prerequisites
Finite element method, elasticity, plasticity, strength of materials, numerical methods.
Language of instruction
Czech
Credits
8 credits
Semester
summer
Forms and criteria of assessment
examination
Specification of controlled instruction, the form of instruction, and the form of compensation of the absences
Extent and forms are specified by guarantor’s regulation updated for every academic year.
Offered to foreign students
Not to offer
Course on BUT site
Lecture
13 weeks, 3 hours/week, elective
Syllabus
1. Type of materials with respect to softening, introduction into material constitutive laws.
2. Linear elastic fracture mechanics LEFM, fracture process zone, applicability of LEFM.
3. Nonlinear fracture mechanics, fracture-mechanical parameters of material.
4. Strain localization, spurious mesh sensitivity, localization limiters.
5. Crack band model, nonlocal continuum mechanics.
6. Constitutive laws for concrete and other quasibrittle materials.
7. Fracture-plastic model, microplane model.
8. Size effect, deterministic-energetic and statistical explanation.
9. Size effect of modulus of rupture.
10. Fundamentals of damage mechanics.
11. Modelling using nonlinear fracture mechanics software ATENA.
12. Stochastic fracture mechanics.
13. Modelling using software system SARA.