Course Details

Selected Chapters of Structural Mechanics 2 (K)

Academic Year 2024/25

NDB032 course is part of 1 study plan

NPC-SIK Winter Semester 2nd year

Course Guarantor


Language of instruction



5 credits



Forms and criteria of assessment

course-unit credit

Offered to foreign students

Not to offer

Course on BUT site


13 weeks, 2 hours/week, elective


1. Introduction to fiber reinforced composites. Application sphere, comparison with steel-reinforced concrete and other traditional materials. Characterization of the main features influencing the mechanical response. Insight into the mechanisms of energy dissipation and mechanisms of stress redistristribution during progressive failure. Connections to fracture mechanics. 2. Characterization of various fiber types and materials for fiber production (such as steel, glass, carbon, aramid, polyester etc.). Characterization of yarn type, yarn production and yarn testing. 3. Classical model of yarn based on the FEM. Model of the mechanical response based on sorting algorithms. 4. Probabilistic model of the yarn response. Definition , explanation of the paradigm, revision of the main ingredients and basic transformations of the model. 5. Study of the influence of basic sources of heterogeneity and randomness on random yarn response. Comparison of all the studied models. 6. Distribution of strength of multifilament yarns. Daniels’ theorem. Transition of the strength tail to the distribution core. Recursive formulas. Asymptotic strength. 7. Extension to the strength of composites with chained crack bridges. Theory of extreme values and the associated weakest-link model. 8. Advances questions in the theory of composites, revision.


13 weeks, 1 hours/week, compulsory


1. Submission of individual problems to be solved on computer. 2.–9. Work on the tasks with the help of the teacher. 10. Presentation of the results, credits.