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Lecturer(s)
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Šuba Oldřich, doc. Ing. CSc.
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Course content
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1. Isotropic homogeneous walls of products made of thermoplastics, membrane and bending stress/deformation of walls of shell products. 2. Isotropic walls of generally layered structure, mechanical, thermal tension. 3. Double-layer walls with thermoplastic linings, mechanical and thermal tension. 4. Thermoplastic walls with temperature gradient, stress redistribution. 5. Peculiarities of mech. behavior of thin-walled products, stability of a uniaxial pressed wall, attached only at loaded edges, energy principle. 6. Stability of uniaxial pressed walls, attached at all edges. 7. The influence of the initial curvature on the buckling capacity of the plate, the combination of tension - pressure and transverse load. 8. Stability of cylindrical shells, long cylinder. shell nam. external overpressure, cylinder stability. shell reinforcement. rings. 9. Bending of the edges of a cylindrical shell, a cylindrical shell under the effects of a temperature gradient. 10. Anisotropic surface products of layered structure - laminates, general equations of elasticity 3D, 2D, matrices C, S, transformation. 11. Symmetry of elast. properties, monotropic, orthotropic materials, elast. and thermoelast. orthotropic behavior. laminae. 12. Micromechanics of unidirectionally reinforced 2D element, effective elastic constants, effective temperature coefficients. expansion. 13. Macromechanics of laminate structures, constitutive equation of laminate, types of laminate structures, thermoelastic behavior of laminates. 14. Moss. behavior of injected products with short fibers.
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Learning activities and teaching methods
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- Preparation for examination
- 150 hours per semester
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| prerequisite |
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| Knowledge |
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| Znalosti z dimenzování a navrhování výrobků z polymerů. |
| Znalosti z dimenzování a navrhování výrobků z polymerů. |
| learning outcomes |
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| Knowledge of the mechanics of flat thin-walled products made of thermoplastics, mechanical - membrane, bending and thermal tension. Cylindrical vessels with internal overpressure. |
| Knowledge of the mechanics of flat thin-walled products made of thermoplastics, mechanical - membrane, bending and thermal tension. Cylindrical vessels with internal overpressure. |
| Dimensioning of thin-walled products and constructions, issues of designing underground tanks made of thermoplastics. Assessment of stability bearing capacity. |
| Dimensioning of thin-walled products and constructions, issues of designing underground tanks made of thermoplastics. Assessment of stability bearing capacity. |
| Knowledge of the mechanics of layered polymer walls, mechanical and thermal tension. Sandwich constructions. |
| Knowledge of the mechanics of layered polymer walls, mechanical and thermal tension. Sandwich constructions. |
| Knowledge of linear elasticity equations of 2D general anisotropy. Elastic behavior of a 2D orthotropic element. |
| Knowledge of linear elasticity equations of 2D general anisotropy. Elastic behavior of a 2D orthotropic element. |
| Anisotropic surface constructions of a layered structure - laminates. Constitutive equation of laminate structure. Types of laminate structures. |
| Anisotropic surface constructions of a layered structure - laminates. Constitutive equation of laminate structure. Types of laminate structures. |
| Skills |
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| Design and dimension, perform strength calculations of flat constructions made of thermoplastics, especially above-ground tanks. |
| Design and dimension, perform strength calculations of flat constructions made of thermoplastics, especially above-ground tanks. |
| Assess designs for structures of underground plastic containers, especially small wastewater treatment plants, septic tanks, rainwater tanks, etc., when the priority problem is stability, i.e. the resistance of underground tanks to external backfill pressure. |
| Assess designs for structures of underground plastic containers, especially small wastewater treatment plants, septic tanks, rainwater tanks, etc., when the priority problem is stability, i.e. the resistance of underground tanks to external backfill pressure. |
| Assess the stiffness and strength of two-layer walls with thermoplastic linings. |
| Assess the stiffness and strength of two-layer walls with thermoplastic linings. |
| Assess the mechanical and thermal stress of walls made of thermoplastics with a temperature gradient. |
| Assess the mechanical and thermal stress of walls made of thermoplastics with a temperature gradient. |
| Compile the constitutive equations of a symmetric and quasi-orthotropic laminate structure. |
| Compile the constitutive equations of a symmetric and quasi-orthotropic laminate structure. |
| teaching methods |
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| Knowledge |
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| Monologic (Exposition, lecture, briefing) |
| Monologic (Exposition, lecture, briefing) |
| Dialogic (Discussion, conversation, brainstorming) |
| Dialogic (Discussion, conversation, brainstorming) |
| Skills |
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| Practice exercises |
| Practice exercises |
| Individual work of students |
| Individual work of students |
| assessment methods |
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| Knowledge |
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| Analysis of works made by the student (Technical products) |
| Analysis of works made by the student (Technical products) |
| Written examination |
| Written examination |
| Oral examination |
| Oral examination |
| Grade (Using a grade system) |
| Grade (Using a grade system) |
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Recommended literature
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ALFREDO CAMPO, E. Industrial Polymers. Munich: Carl Hanser Verlag, 2008. ISBN 978-3-446-41119-7.
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EHRENSTEIN, G.W. Polymerní kompozitní materiály. 1. vyd.. Praha: Scientia, 2009. ISBN 3-446-14080-8.
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ŠUBA, O. Dimenzování a navrhování výrobků z polymerů. Zlín: UTB, 2019. ISBN 978-80-7318-948-8.
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ŠUBA, O. Mechanika polymerů a kompozitů. Zlín: UTB, 2011. ISBN 978-80-7454-015-8.
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TRES, P.A. Designing Plastic Parts for Assembly. 3rd Ed. 272 s.. Ohio, USA: Hanser Gardner Publications, 2003. ISBN 1569903506.
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