Search for dissertations about: "matrix fracture"

Showing result 1 - 5 of 92 swedish dissertations containing the words matrix fracture.

  2. 1. Distal femur fracture in the elderly patient

    Author : Martin Paulsson; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Distal femur fracture; Geriatric patients; Weight-bearing; Recovery; Secondary displacement; Minimally invasive plate osteosynthesis MIPO ; Fracture alignment; Fracture classification;

    Abstract : Studies on the epidemiology of distal femur fractures show a vast increase in low-energy trauma-associated fractures in older ages. Age-related changes in bones lead to loss of bone matrix and increased porosity, which entails an increased risk for fractures and different fracture patterns than in younger individuals. READ MORE

  4. 2. Hydrodynamic control of retention in heterogeneous aquifers and fractured rock

    Author : Hua Cheng; Vladimir Cvetkovic; Chin-Fu Tsang; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aquifer; Fracture; groundwater; First-order solution; Monte-Carlo simulation; Nu-clear waste; Heterogeneity; Retention processes; Matrix diffusion; Prediction; Evaluation; Travel time; Flow rate; ; Water engineering; Vattenteknik;

    Abstract : In this thesis, fluid flow and solute transport in heterogeneous aquifers and particularly in frac-tured rock have been investigated using Lagrangian Stochastic Advective-Reaction (LaSAR) framework. The heterogeneity of the aquifer structure or fracture configuration, as well as the various reaction/retention processes have been considered in the modelling approach. READ MORE

  5. 3. On fiber network fracture mechanics and kink band formation in biocomposites

    Author : Vedad Tojaga; Sören Östlund; Artem Kulachenko; T. Christian Gasser; Emanuela Bosco; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Staggered; Monolithic; Fracture; Constitutive modeling; Strong discontinuity approach SDA ; Simo-Reissner beam theory; Geometrically exact beam theory; Minimeringsalgoritm; Simo-Reissner balkteori; Icke kompatibla deformationsmode; Konstitutiva model; Solid Mechanics; Hållfasthetslära;

    Abstract : This thesis summarizes seven appended papers dealing with: (1) The fracture of fibrous materials, e.g. READ MORE

  6. 4. Microstructure and properties of ceramic matrix composites

    Author : Håkan A. Swan; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; creep resistance; microcracking; oxidation; fracture behaviour; temperature; deformation mechanisms; whisker reinforced CMC materials; electron microscopy;

    Abstract : .... READ MORE

  7. 5. Micromechanical modeling of cleavage fracture in polycrystalline materials

    Author : Mateusz Stec; Jonas Faleskog; Andre Pineau; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cleavage fracture; probabilistic modeling; brittle to ductile transition; cohesive zone; visco-plastic material; Engineering mechanics; Teknisk mekanik; Other technology; Övriga teknikvetenskaper;

    Abstract : Cleavage fracture in ferritic steels can be defined as a sequence of few critical steps. At first nucleation of a microcrack takes place, often in a hard inclusion. This microcrack then propagates into the surrounding matrix material. The last obstacle before failure is the encounter of grain boundaries. READ MORE