Sökning: "bond strength"

Visar resultat 31 - 35 av 162 avhandlingar innehållade orden bond strength.

  1. 31. Water in and on ionic materials : Structure, energetics, and vibrations

    Författare :Getachew Kebede; Kersti Hermansson; Marie-Pierre Gaigeot; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DFT; dispersion interactions; OH stretching frequency; electric field; dipole moment; Hydrogen bond; ionic surfaces; ionic hydrates;

    Sammanfattning : Many chemical and physical phenomena in nature, in industrial processes, and in our daily lives take place at water/solid interfaces. The aim of this thesis is to further our knowledge of such processes at a molecular level. LÄS MER

  3. 32. Corrosion of steel bars in fibre reinforced concrete: corrosion mechanisms and structural performance

    Författare :Carlos Gil Berrocal; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; residual flexural capacity; chloride-induced corrosion; electrical resistivity; Fibre reinforced concrete; reinforcement bond; durability; cracking;

    Sammanfattning : The viability of employing fibre reinforcement to improve the durability performance of RC structures by delaying and/or reducing rebar corrosion and by mitigating the structural impact of corrosion-induced damage have been investigated. Given the enhanced crack control of FRC, it could be advantageous to use fibres in civil engineering structures to decrease the ingress of corrosion-initiation substances. LÄS MER

  4. 33. Total Energy Calculations for Predictive Modeling of Crystalline Materials Strength

    Författare :Jan Hartford; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Materials properties depend on phenomena in a hierarchical order from atomic to macroscopic scales. This thesis studies possibilities for electron-structure and total-energy calculations to provide results that are valuable for the modeling of crystalline materials strength. LÄS MER

  5. 34. The shear plate dowel joint : Research on a novel connection for heavy timber structures

    Författare :Gustaf Larsson; Byggnadsmekanik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; timber connection; rubber foil; resilient bond line; single dowel; heavy timber structures;

    Sammanfattning : An increased use of wood can reduce the environmental footprint of the building sector. In order to improve the competitiveness of heavy timber structures, the thesis presents a novel type of timber connection with a high degree of prefabrication. LÄS MER

  7. 35. Two-dimensional Nanocomposites Based on Cellulose Nanofibrils and Graphene Oxide

    Författare :Hanieh Mianehrow; Lars Berglund; Aji Mathew; KTH; []
    Nyckelord :Cellulose nanofibrils; graphene oxide; orientation; reinforcement; oxygen barrier; bio-nanocomposite; moisture; molecular adhesion; interfacial shear strength.; Nanocellulosa; grafenoxid; orientering; förstärkning; syrebarriär; bionanokomposit; fukt; molekylär adhesion; skjuvhållfasthet hos gränsytan.; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Two-dimensional (2D) nanocomposites based on cellulose nanofibrils (CNF) and 2D nanomaterials are of interest as sustainable materials combining functional and structural properties. To achieve reinforcement effects from 2D nanomaterials, their orientation and dispersion state in the CNF matrix are important. LÄS MER