Course objectives:
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The lectures deal with the modeling of the mechanical behavior of composite materials. Basic terminology in the field of the mechanics of deformable materials is introduced. Quantities such as stress and strain are defined and explained and important relations such as Hooke's law for the whole range of the anisotropic materials are investigated and explained. Basic types of composite materials are shown. The approaches for the determination of the mechanical parameters for the simulations are summarized and described. Failure theories are described, and their use is shown. An explanation of the different types of layup of laminates is given. Everything is shown on practical problems, which are solved using either an analytical approach or modern numerical simulations.
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Requirements on student
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Requirements for course confirmation : Creating a course project.
Requirements for examination: Defending a course project and ability to correctly answer to additional question considering the topic of the course project.
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Content
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Lectures
1. Introduction to composite materials.
2. Manufacturing and technology
3. Basic relations for calculations of mechanical response of the composite materials.
4. Hooke's law and its transformation to another coordinate systems.
5. Material parameters for different types of composite materials.
6. Experimental determination of material parameters.
7. Failure and damage of composite materials.
8. Failure theories.
9. Analysis of laminates.
10. Analysis of sandwich materials.
11. The influence of other quantities on the behavior of the composite material - temperature change, humidity change, influence of the UV radiation.
12. New trends in manufacturing of composite structures.
13. Reserve
Practicum
1. Introduction to commercial computation software for analyses of the composite structures.
2. Matlab and its use for mechanics of materials.
3. Calculation of the stiffness matrix.
4. Calculation of the off-axis stiffness matrix.
5. Laboratory example - tensile test of composite.
6. Analysis of the results of the tensile test.
7. Laboratory example - manufacturing of the composite materials.
8. FEM analysis of the laminae.
9. FEM analysis of the laminate.
10. FEM analysis of the sandwich material.
11. Failure analysis of the composite.
12. FEM analysis of different composite layups.
13. Reserve
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Activities
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Fields of study
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Guarantors and lecturers
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Literature
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Time requirements
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Full-time form of study
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Activities
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Time requirements for activity [h]
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Contact hours
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65
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Preparation for an examination (30-60)
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30
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Graduate study programme term essay (40-50)
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40
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Total
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135
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Prerequisites
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Knowledge - students are expected to possess the following knowledge before the course commences to finish it successfully: |
Have basic knowledge in engineering and physics |
Skills - students are expected to possess the following skills before the course commences to finish it successfully: |
Be able to solve algebraic equations
Be able to use a computer |
Competences - students are expected to possess the following competences before the course commences to finish it successfully: |
N/A |
N/A |
N/A |
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Learning outcomes
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Knowledge - knowledge resulting from the course: |
Explain the basic concepts of elastostatics (tensile diagram, Hooke's law, stress, deformation, strength, strength condition)
Know typical composite materials and approach to their modeling (unidirectional, fabric, sandwich) |
Skills - skills resulting from the course: |
Analyze simple problems of loaded composite materials
Basic skills for simulation of composite materials in computational software working with the finite element method |
Competences - competences resulting from the course: |
N/A |
N/A |
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Assessment methods
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Knowledge - knowledge achieved by taking this course are verified by the following means: |
Oral exam |
Skills - skills achieved by taking this course are verified by the following means: |
Oral exam |
Seminar work |
Competences - competence achieved by taking this course are verified by the following means: |
Oral exam |
Seminar work |
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Teaching methods
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Knowledge - the following training methods are used to achieve the required knowledge: |
Lecture with visual aids |
Lecture with a video analysis |
Multimedia supported teaching |
E-learning |
Skills - the following training methods are used to achieve the required skills: |
Practicum |
Individual study |
E-learning |
Cooperative instruction |
Task-based study method |
Competences - the following training methods are used to achieve the required competences: |
Lecture with visual aids |
Lecture with a video analysis |
Practicum |
Task-based study method |
Individual study |
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