Essays about: "Hållfasthetslära"

Showing result 1 - 5 of 269 essays containing the word Hållfasthetslära.

  1. 1. Validation of sPEeD: A study aimed to validate the analysis program sPEeD12953

    University essay from KTH/Hållfasthetslära

    Author : Mathias Strinnholm; [2023]
    Keywords : Master thesis; shell boiler; corrosion; creep; validation; EN12953; European standard; Examensarbete; eldrörspanna; korrosion; kryp; validering; EN12953; europeisk standard;

    Abstract : Shell boilers used in Sweden and Europe has to be certified before being used. Kiwa Sweden performs the role as an accredited third party for control services within most industries in Sweden. Kiwa Sweden has acquired an analysis program called  sPEeD12953 from the danish company Danish Exergy Technology (DXT). READ MORE

  3. 2. A Methodology for Evaluating the Performance of Material Models Under Biaxial Loads

    University essay from Lunds universitet/Hållfasthetslära; Lunds universitet/Institutionen för byggvetenskaper

    Author : Emmie Salomonsson; Ina Ögren; [2023]
    Keywords : Material Model; Biaxial Test; Punch Test; Material Test; POM; Simulation; FEA.; Technology and Engineering;

    Abstract : The objective of this thesis is to develop a methodology for evaluating the performance of material models during biaxial loads. This is done by executing identical punch tests, one in a simulation and one in a physical experiment, and then comparing the results from the two. READ MORE

  4. 3. Evaluation of a computational method for natural fiber-reinforced plastics

    University essay from KTH/Hållfasthetslära

    Author : Anna Lim; [2023]
    Keywords : PPNF; Composite material; fiber orientation; natural fiber; coupled analysis; PPNF; Kompositmaterial; fiberorientering; naturfiber; kopplad analys;

    Abstract : The importance of using natural fiber composites (NFCs) has been addressed as a substitution for synthetic fibers, such as glass and carbon fibers. This substitution contributes significantly to reducing greenhouse gas emissions, aligning with the environmental responsibilities of engineering industries. READ MORE

  5. 4. 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

  6. 5. Impact of Residual Stress on the Warm Pre-Stressing Effect

    University essay from KTH/Hållfasthetslära

    Author : Emil Danielsson; [2023]
    Keywords : Warm Pre-Stressing effect; Residual stress; Cleavage fracture; Ferritic Steel; Fracture mechanics; Varm förspänning; Restspänningar; Klyvbrott; Brottmekanik; Ferritiskt stål;

    Abstract : Irradiation of a reactor pressure vessel (RPV) causes a shift of the ductile to brittle transition region towards higher temperature regions. In the event of a pressurized thermal shock (PTS), where the temperature drops drastically, the ductile to brittle transition region might be entered for irradiated ferritic steel. READ MORE