Sökning: "uniaxial stress"

Visar resultat 1 - 5 av 55 avhandlingar innehållade orden uniaxial stress.

  1. 1. Fatigue of Asphalt Mixes - Theory of Viscoelasticity and Continuum Damage Mechanics Applied to Uniaxial Fatigue Data from Laboratory Tests

    Detta är en avhandling från Department of Technology and Society, Lund University

    Författare :Richard Nilsson; [2003]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; asphalt mixture; viscoelastic; Fatigue; deterioration models; Continuum Damage Mechanics; laboratory test; uniaxial; hydraulic engineering; Civil engineering; offshore technology; soil mechanics; Väg- och vattenbyggnadsteknik;

    Sammanfattning : The advance of analytic (mechanistic) design methods increases the need for fundamental material properties. Fatigue cracking due to traffic loading, in combination with permanent deformation (rutting), thermal cracking, irregularities, frost heave and reflective cracking are some of the major criteria used when designing an asphalt concrete pavement. LÄS MER

  2. 2. Electronic Structure of Transition Metal Complexes in Silicon

    Detta är en avhandling från Solid State Physics, Lund University

    Författare :Per Tidlund; [1998]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; uniaxial stress; FTIR; Zeeman spectroscopy; deep levels; phonon-assisted Fano resonances; Physics; Fysik; Au; Fysicumarkivet A:1998:Tidlund; PtLi; AuLi; Pt; Transition Metals; Silicon;

    Sammanfattning : This thesis consists of experimental studies of the electronic of electronic structure of the transition metals Au and Pt, and the transition metal complexes, FeIn, PtLi, and AuLi in silicon. Fourier transform infrared spectroscopy, photoconductivity, uniaxial stress- and Zeeman spectroscopy are employed. LÄS MER

  3. 3. Rheology of Wheat Flour Doughs at Large Deformations and the Relation to Baking Quality and Physical Structure

    Detta är en avhandling från Department of Food Technology, Lund University

    Författare :Katarina Wikström; [1997]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Food and drink technology; mixograph; multivariate analysis; stress relaxation; uniaxial flow; biaxial flow; baking quality; extensional flow; enzymes; Dough; rheology; Livsmedelsteknik;

    Sammanfattning : The effects on dough rheology at large deformations in elongational flow and shear flow have been studied. The results are related to bread making quality in terms of bread volume and to the physical structure of the dough. A new method for evaluation of an instrumented mixograph is reported. LÄS MER

  4. 4. Fracture and stress in powder compacts

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Pär Jonsén; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Sammanfattning : In the field of powder metallurgy (PM), the production methods are constantly developed and improved to produce components with high precision and strength. Cold uniaxial pressing of powder into a green body is a common process in PM. LÄS MER

  5. 5. Analysis of rock stress and rock stress measurements with application to Äspö HRL

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Beatrice Lundholm; [2000]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gruv- och Berganläggningsteknik; Mining and Rock Engineering;

    Sammanfattning : The process of choosing a site for a nuclear waste repository means that many aspects have to be taken into consideration. One of these is that the repository has to be mechanically stable for a long time. The mechanical stability of the rock is very difficult to determine. LÄS MER