Search for dissertations about: "Microfibril angle"

Showing result 1 - 5 of 9 swedish dissertations containing the words Microfibril angle.

  1. 1. Micromechanical Behavior of Fiber Networks

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Svetlana Borodulina; Mikael Nygårds; Artem Kulachenko; Susanne Heyden; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Network simulation; Mechanical properties; Fibers; Bonds; Paper properties; Damage; Microfibril angle; Torsion;

    Abstract : Paper is used in a wide range of applications, each of which has specific requirements on mechanical and surface properties. The role of paper strength on paper performance is still not well understood. This work addresses the mechanical properties of paper by utilizing fiber network simulation and consists of two parts. READ MORE

  2. 2. Micromechanical Modelling of Wood and Fibre Properties

    University dissertation from Division of Structural Mechanics, Lund Institute of Technology

    Author : Kent Persson; [2000]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental technology; Byggnadsteknik; Building construction; Microfibril angle; Density; Hygroexpansion; Stiffness; Simulation; Wood; Fibre; pollution control; Miljöteknik; kontroll av utsläpp; Material technology; Materiallära; materialteknik;

    Abstract : Wood is a material with mechanical properties that vary markedly, both within a tree and among trees. Moisture changes lead to shrinkage or swelling and modify the mechanical properties. READ MORE

  3. 3. Hygroelastic behaviour of wood-fibre based materials on the composite, fibre and ultrastructural level

    University dissertation from Stockholm : KTH

    Author : Razvan Cristian Neagu; Kristofer Gamstedt; Staffan Toll; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wood fibres; ultrastructure; structure-property relations; microfibril angle; composites; characterization methods; hygroelastic properties; micromechanics; modelling; reinforcement potential; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Wood fibres can be used as reinforcement in plastics for load carrying purposes. Some advantages compared with conventional man-made fibres are that wood fibres come from a renewable resource, have high specific stiffness and strength, are generally less hazardous to health, biodegradable, and can be manufactured at low cost and high volumes. READ MORE

  4. 4. Mechanical behaviour of hardwoods effects from cellular and cell wall structures

    University dissertation from Stockholm : KTH

    Author : Ingela Bjurhager; Lars Berglund; Ingo Burgert; Magnus Wålinder; [2008]
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; FORESTRY; AGRICULTURAL SCIENCES and LANDSCAPE PLANNING Product science Wood fibre and forest products; SKOGS- och JORDBRUKSVETENSKAP samt LANDSKAPSPLANERING Produktforskning Träfiber- och virkeslära;

    Abstract : Syftet med den här avhandlingen var att undersöka mekaniska egenskaper hos olika arter av lövträd, och koppla egenskaperna till cell- och cellväggsstrukturen i materialet. Arterna som omfattades av undersökningen var Europeisk asp (Populus tremula), hybridasp (Populus tremula x Populus tremuloides) och ek (Quercus robur). READ MORE

  5. 5. Quantitative genetics of Norway spruce in Sweden

    University dissertation from ; Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences

    Author : Zhiqiang Chen; Sveriges lantbruksuniversitet.; [2016]
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Genetic improvement of solid wood and pulp and paper products related wood quality traits are important to increase productivity and value of Norway spruce plantation in Sweden. To incorporate wood quality traits into Norway spruce tree breeding program, genetic parameters of solid wood and fibre traits were investigated in a large Norway spruce population. READ MORE