Sökning: "Compression fracture"

Visar resultat 21 - 25 av 78 avhandlingar innehållade orden Compression fracture.

1. 21. Numerical modelling of geomaterials at failure

   Författare :Alex Spetz; Byggnadsmekanik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; soil-structure interaction; soil plasticity; phase-field fracture model; compression driven fractures; artificial rock; porous rock; finite element analysis; isogeometric analysis; NURBS; numerical methods;

   Sammanfattning : Geotechnical engineering is the science dealing with mechanics of soils and rocks and its engineering applications. Geotechnical engineering projects vary in a wide range, from evaluation of the stability of natural slopes and man-made soil deposits, to the design of earthworks and foundations. LÄS MER

3. 22. Injectable Calcium Phosphate Bone Substitute In Distal Radial Fractures

   Författare :Philippe Kopylov; Lund Ortopedi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Norian SRS; Bone substitute; radius fracture; injectable; calcium phosphate; Surgery; orthopaedics; traumatology; Kirurgi; ortopedi; traumatologi;

   Sammanfattning : Fractures of the distal end of the radius are common and occur in many different forms. The long-term results after conservative treatment of fracture of the distal end of the radius in younger adults with special reference to degenerative changes and function are investigated in 76 patients (Paper I). LÄS MER

4. 23. Structure-Control of the Rheological Behaviour of Particulate Gels

   Författare :Camilla Olsson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; structure formation; potato amylopectin; structure deformation; rheology; particulate gels; image analysis; beta-lactoglobulin; fracture mechanics; microstructure;

   Sammanfattning : The focus of this thesis is the relation between the rheological and structural properties of mixed particulate gels, based on β-lactoglobulin, determined under both dynamic and static conditions. Rheological characteristics were recorded during formation of the gels, on set gels and during deformation and fracture of the gels, using viscoelastic measurements in shear and in compression and fracture mechanics in tension. LÄS MER

5. 24. Effects of high load on the growing spine. Experimental studies anda long-term follow-up of top athletes

   Författare :Olof Lundin; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Athletes; adolescence; back pain; compression load; disc degeneration; intervertebral disc; radiography; spine; porcine spine; nucleus pulposus; vertebral endplate;

   Sammanfattning : A high prevalence of radiological abnormalities of the spine has been reported in some physically demanding sports. The significance and aetiology of these radiological abnormalities are still a matter of controversy and the long-term effects are not known. LÄS MER

7. 25. On crack growth under compressive stresses

   Författare :Per Isaksson; Mittuniversitetet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ph.D. Thesis; Fracture mechanics; Cellulose and paper engineering; Cellulosa- och pappersteknik; Hållfasthetslära;

   Sammanfattning : This thesis concerns fractures subjected to compressive stresses. In the four papers appended fracture behavior in brittle as well as ductile materials is studied. LÄS MER