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Využití alternativních výztužných materiálů ve vrstvených lepených materiálech
Svatoň, Kryštof
Thesis deals with possibilities of reinforcement of plywood boards with natural materials in order to improve mechanical and physical properties. 5-layer spruce boards were reinforced under top layer with basalt fabric and jute. There was used environmental friendly glue for plywood fabrication. Results indicate increase in mechanical properties of boards with basalt fabric reinforcement. Mechanical properties of boards reinforced by jute were decreased.
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Posouzení vybraných vlastností konstrukčních materiálů pro dřevostavby
Schiel, Jakub
At first this diploma thesis tests and compared selected physical and mechanical properties of various construction materials. Furthermore, thesis compares results with measured values determined by manufacturer. In next part of thesis is de-signed similar wall composition which is differs only by sheeting material. On every wall composition was calculated heat transmittance. Compositions are compared with each other, further there are compared economically.
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Kočičí odpočívadlo jako designový prvek interiéru
Novák, Filip
The bachelor work with its development is aimed at creating a unique collection of cat resting place as a structural element of the interior with a new view of the given issue with the possibility of its use for the owner himself. Subsequent production of the proto-type of one of the proposed models will bring the product market out of the current range of manufactured products. The theoretical part of the introduction explains the human need of cat breeding and the historical development that preceded it. Using search surveys of both the foreign and the Czech market, the type of trends and materi-als currently used in production. The practical part is an inspiration leading to the final form of the collection and the competition survey. The work culminates with a 1:1 scale prototype production and a built-in marketing plan to facilitate the products distribution.
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Posouzení pevnosti lepení při nastavování překližovaných materiálů
Krejčíř, Michal
This master thesis is focused on mechanical properties of glued scarf for long-grain plywood extension made by request of company Orlimex CZ s.r.o. Main goal was to find out best type of joint and glue for this purpose and compare strength prop-erties of scarf jointed plywood versus non-jointed plywood. The reason for scarf-jointing plywood is the production on custom sized and non-standard panels as well as evaluating panel´s quality and possible application of cut off boards. All plywood properties were tested according to CSN EN terms and evaluated by statistics and cut analysis
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Vývoj a analýza kombinovaného vrstveného materiálu
Marek, Michal
The diploma work is focused on the development and analysis of plywood material reinforced by means of synthetic fibers, namely on its mechanical properties in a three – point bend in compliance with the CSN EN 310 Standard in comparison with the conventional plywood. At first, the mechanical properties of the material were simulated with the aid of a computer-aided model on the basis of the classical laminate theory and then compared to the real measured values. In addition to it, the influence of preloaded fibers on the mechanical properties of the composite was examined. To preload the fibers, two simple fixtures were manufactured. The analysis of variance and the Tukey’s test of multiple comparison demonstrated important differences in the resistance and rigidity of the plywood material both with the reinforcement and without it. The highest resistance proved the plywood samples without any reinforcement (at an average of 153.9 MPa), the highest rigidity was achieved in samples with reinforcement without any preloading (at an average of 29374.4 MPa).
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Návrh technologie výroby zahradního nábytku vlastní koncepce
Malíková, Aneta
The bachelor thesis deals with design and construction of a garden seating element, which is a partly adjustable bench, and a proposal of a possible production technology of the given product. The bench is designed for a covered area, such as a terrace or pergola. The theoretical part of the bachelor thesis focuses on the issue of sitting connected with ergonomics and anthropometry. The following is a chapter on the typology of garden furniture, benches particularly, and a market survey in the area given. Further on, there are chapters on construction joints, material, surface treatments and adhesives used for garden furniture. Last but not least, there is a chapter in the theoretical part about the technology selected for this particular project, using which the chosen garden bench can be manufactured. The practical part deals with a design and a partial realization of the garden seating element. The design is based on an acquired knowledge from the area of typology, construction, and ergonomics of seating furniture. In the opening part, there is a background research. What follows is a sketching, 2D drawing, and 3D modeling which helped to secure the accurate shape of the element. The result of this project is a 3D visualization of the bench, design drawings, assembly instructions and a part of the model in the scale 1:10 and 1: 1, where the design and folding mechanism is demonstrated.
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Návrh sedacího prvku
Bednárková, Šarlota
The task of the thesis is to design seating element for dynamic sitting using molded plywood. The theoretical part focuses on the history, ways of sitting, ergonomics and alternative seating. In the theoretical part, there is also chapter dedicated to the technology of production material selected for the design. The practical part deals with the design process. At first, there is compiled reseach, which is connected to a part of sketching and 3D design to find the right shape, which also takes place using simple models of 1: 5 and 1: 1. The results of the thesis are 3D visualizations of chairs for dynamic sitting, model of 1: 5 made of molded plywood and construction drawings for production of prototypes.
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Návrh materiálu na bázi dřeva s požární odolností
Jeřábková, Lucie
Bachelor thesis compares the properties of composite materials with basalt fiber or with glass fiber. The main objective is comparison of the mechanical properties, which include fire resistance. Concretely, thesis will deal with bending properties of composite material with basalt fiber. These properties of composite material with basalt fiber will be compared with the bending properties of the composite material with glass fiber and plywood. The second part will deal with fire resistance of composite material with basalt fiber and will compare with the fire resistance plywood and composite material with glass fiber. Finally will be made a test of the surface resistant against falling bullet.
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Faktory ovlivňující tvarovou stabilitu překližovaných výlisků v závodě TON Holešov
Měrka, Tadeáš
Final thesis reviews shaping stability and quality of bonding in production of plywoods mouldings in plant TON Holešov. It gives an overview of issue, the characteristic of laminated bonded materials, their production and application and specifies shaped laminated products. It evaluates selected types of mouldings and adhesives used for production of components sitting furniture. Tests selected physical and mechanical properties of plywood, moisture content, density, bending modulus of rupture, bending modulus of elasticity, strength of glue line a other factors influencing shaping stability of plywoods mouldings. Achieved results evaluates, statistically analyses and compares with available literature. On the basis of the results proposes measures to improve shaping stability plywoods mouldings in the plant.
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