Sökning: "Constitutive relations"
Visar resultat 1 - 5 av 49 avhandlingar innehållade orden Constitutive relations.
Sammanfattning : Cemented carbides based on tungsten carbide and cobalt arecommonly produced by a powder metallurgy route including liquidphase sintering. The pressed compact densifies to almost halfits volume during sintering due to pore elimination. LÄS MER
2. Behaviour and modelling of a natural soft clay : triaxial testing, constitutive relations and finite element modelling
Sammanfattning : The main objectives if the research project have been to create an experimental basis for a more general theoretical modelling of Swedish clays and to improve the knowledge of the mechanical behaviour of natural soft clays. Another objective has been to investigate the effects of end restraint on the mechanical behaviour obtained in triaxial tests, by means of numerical simulations. LÄS MER
Sammanfattning : In classical description, the mechanical state of a material point depends on the variables defined at this point solely. It can integrate and catch some aspects of the material’s microstructure by conventional homogenization method. LÄS MER
4. Experimental and Modelling Studies on the Spreading of Non-Aqueous Phase Liquids in Heterogeneous Media
Sammanfattning : Non-Aqueous Phase Liquids (NAPLs) include commonly occurring organic contaminants such as gasoline, diesel fuel and chlorinated solvents. When released to subsurface environments their spreading is a complex process of multi-component, multi-phase flow. LÄS MER
Sammanfattning : This thesis is dedicated to two distinct but convergent issues: the possibility of paraphrase and an account of context sensitivity on the basis of textual cohesion (or coherence). The possibility of explaining contextual specifications of meaning as a side effect of establishing textual cohesion is explored through an investigation into the nature of texts. LÄS MER