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Showing result 31 - 35 of 42 essays matching the above criteria.

  1. 31. Hovsprickor hos häst

    University essay from SLU/Dept. of Clinical Sciences

    Author : Ida Josefin Jormhed; [2016]
    Keywords : hovsprickor; häst; hoof cracks; horse;

    Abstract : Hovkapseln är hovens epidermis och den omsluter, skyddar och stödjer kötthoven som utgörs av hovens inre strukturer. Hovkapseln har till uppgift att bära vikt, tåla nötning samt utgöra halkskydd och genom sin formbarhet möjliggör den sänkning av belastningsamplituder. READ MORE

  3. 32. Investigation of the frost resistance in bacteria treated self-healing concrete

    University essay from Lunds universitet/Avdelningen för Byggnadsmaterial

    Author : Karin Persson; [2016]
    Keywords : Concrete; Hydraulic Structures; Hydro Power; Frost Resistance; Self- healing; Bacteria; Precipitation; Calcium Carbonate Betong; Vattenbyggnader; Vattenkraft; Frostbeständighet; Självläkn- ing; Bakterier; Utfällning; Kalciumkarbonat; Technology and Engineering;

    Abstract : Vattenkraften står för hälften av vårt elbehov i Sverige idag. Merparten av vattenkraftverken är gjutna i betong och som många andra betongkonstruktioner så drabbas betongen av sprickbildning av olika orsaker. För vattenkraften är genomgående sprickor ett problem då dessa skapar läckage. READ MORE

  4. 33. Numerical analyses of concrete buttress dams to design dam monitoring

    University essay from KTH/Betongbyggnad

    Author : Daniel Svensen; [2016]
    Keywords : Concrete; buttress dams; thermal effects; finite element analysis; instrumentation; alarm values; alert values; Betong; lamelldammar; termiska effekter; finit element analys; intstrumentering; larmvärden;

    Abstract : Old concrete buttress dams are sensitive to cracking if exposed to large temperature variations. The cracks can make dams sensitive to failure, depending on the size and location of the cracks. These problems can be overcome by lowering the temperature variations and stabilizing the dams. READ MORE

  5. 34. Investigation of cracking due to restraint forces in Swedish concrete slab frame bridges

    University essay from Lunds universitet/Avdelningen för Konstruktionsteknik

    Author : Robin Almen; [2016]
    Keywords : slab frame bridges; concrete cracking; crack control; restraint; restraint forces; finite element; Technology and Engineering;

    Abstract : When concrete slab frame bridges are designed with modern linear 3D FE-models large tensile restraint forces will arise in the transversal direction of the bridge from the temperature and shrinkage loads. These restraint forces are much larger than those that are accounted for in the older 2D models. READ MORE

  6. 35. Progressive failure analyses of concrete buttress dams : Influence of crack propagation on the structural dam safety

    University essay from KTH/Betongbyggnad

    Author : Chaoran Fu; Bjartmar Hafliðason; [2015]
    Keywords : concrete buttress dams; cracked concrete; failure modes; safety factor; finite element analysis; nonlinear material properties; betong; lamelldammar; uppsprucken betong; brottmoder; säkerhetsfaktor; finita element analyser; icke-linjära material modeller;

    Abstract : Concrete buttress dams are the most common type of concrete dams for hydropower production in Sweden. Cracks have been observed in some of the them. However, only limited research has been made concerning the influence of these cracks on the structural dam safety. READ MORE