Essays about: "complex viscosity"

Showing result 1 - 5 of 23 essays containing the words complex viscosity.

  1. 1. Fracture simulation with a hyperelastic phase field model

    University essay from KTH/Hållfasthetslära

    Author : Adrien Fradet; [2023]
    Keywords : Fracture; Phase field modeling; Hyperelasticity; Brott; fasfält-methoden; hyperelasticite;

    Abstract : The phase field method is a versatile tool to study crack initiation and propagation in systems with complex geometries. Based on a variational formulation of the equilibrium equations, the sharp crack topology is regularized by a crack with diffusive edges and the damage is described by a continuous phase field variable. READ MORE

  3. 2. Mapping and treatment optimization attempt of monocalcium phosphate monohydrate (MCPM) in bioceramic implant production

    University essay from Uppsala universitet/Tillämpad materialvetenskap

    Author : Martin Hunhammar; [2022]
    Keywords : MCPM cement biomaterial paste viscosity monocalcium phosphate monohydrate monetite implant; monokalciumfosfat monohydrat cement biomaterial monetit viskositet implantat;

    Abstract : The in vitro production of ceramic implants used for cranial defect repair can be challenging and complex. In this thesis, a raw material in such a production has been mapped in order to optimize the production process. READ MORE

  4. 3. Temperature dependency of rheological properites of different dispersions containing microfibrillated cellulose

    University essay from Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)

    Author : Johanna Swanelius; [2022]
    Keywords : Microfibrillated cellulose; MFC; waxy maize starch; rheology; temperature; viscosity; complex viscosity; stready shear viscosity curve; amplitude sweep; dry content; dynamic rotational rheometer; Mikrofibrillerad cellulosa; MFC; vaxartad majsstärkelse; reologi; temperatur; viskositet; komplex viskositet; flödeskurva; amplitudsvep; torrhalt; dynamisk reometer;

    Abstract : Today, the focus lies on the state of the environment and how we can choose more sustainable alternatives to oil based materials. One material of interest is microfibrillated cellulose (MFC). READ MORE

  5. 4. The Influence of Electric Currents on Performance of Grease Lubricated Rolling Element Bearings

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Bharath Chanamolu; [2022]
    Keywords : Angular contact bearings; Bearing currents; Shaft voltages; Film thickness estimation; Electrical-capacitance method; Frictional moment measurements; Lubricant starvation; Vinkelkontaktlager; Lagerströmmar; Axelspänningar; Filmtjockleksuppskattning; Elektrisk-kapacitansmetod; Friktionsmomentmätningar; Smörjmedelsvält..;

    Abstract : The technological advancement in electrical machinery represents the need to understand the lubricant behaviour in the electrical environment. As shaft voltages are unavoidable in electrical machinery, developing new grease formulations and studying their performance against electric loads is required. READ MORE

  6. 5. UV Curable Polymers for use in Additively Manufactured Energetic Materials

    University essay from KTH/Fiber- och polymerteknologi

    Author : Alexis Delorme; [2022]
    Keywords : Additive manufacturing; 3D printing; UV curing; mechanical properties; solid rocket motor; propellant; polymers; depth of cure; Additiv tillverkning; 3D-utskrift; UV-härdning; mekaniska egenskaper; fast-bränsleraketmotor; drivmedel; polymerer; härdningsdjup;

    Abstract : Fast-bränsle-raketer (SRM) har funnit sin plats i en stor mängd tillämpningar sedan deras framkomst mer än 2000 år sedan. En SRMs prestanda är förutbestämd av geometrin av drivmedelskrutet och är begränsad av gjutningsmetoden, som idag främst används i produktion. READ MORE