Sökning: "grain angle"
Visar resultat 21 - 25 av 68 avhandlingar innehållade orden grain angle.
21. On the in-plane mechanical properties of birch plywood
Sammanfattning : Birch plywood has favorable mechanical properties that could be used in new types of connections for timber structures, and thus enable a substitution of the current system with steel plates. Such new connections could result in significant advantages in terms of environmental impact and economy as well as ease of prefabrication and mountability. LÄS MER
22. Nondestructive measurement of spiral grain with X-rays in laboratory and in industry
Sammanfattning : Wood is a biological material with great variability. Every piece of wood is a unique individual. This is an advantage of wood when it is used in products where the wood structure is visible but a drawback in the manufacturing process. LÄS MER
23. In-plane mechanical properties of acetylated birch plywood and its response to humidity elevation
Sammanfattning : Due to the recent flourish of modern timber structures, there is an increasing demand for engineered wood products (EWPs). However, outdoor exposure of EWPs often poses a risk of durability-related issues. LÄS MER
24. Microstructure Development of WC-Co Based Cemented Carbides During Creep Testing
Sammanfattning : The aim of this work is to understand the mechanisms behind the plastic deformation of WC‐Co based cemented carbides. The microstructure of two series with different WC grain size was investigated before and after creep deformation using quantitative microscopy, atom probe tomography, and transmission electron microscopy. LÄS MER
25. Automatic measurement of compression wood and spiral grain for the prediction of distortion in sawn wood products
Sammanfattning : Distortion is one of the major obstacles for effective utilisation of wood, especially in the building process, where wood has lost market shares to other materials largely because of the lack of straightness. Bow and spring are often caused by compression wood, while twist is the cause of spiral grain. LÄS MER