Essays about: "material nonlinearity"

Showing result 1 - 5 of 9 essays containing the words material nonlinearity.

  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. Numerical study of the effect of thermal ice loads on concrete dams

    University essay from KTH/Betongbyggnad

    Author : Imal Zuwak; Wasseem Kordoghly; [2020]
    Keywords : Arch dam; Buttress dam; Concrete; Finite element analysis; Ice load; Valvdamm; Lamelldamm; Betong; Finit elementanalys; Islast;

    Abstract : It is essential to understand the mechanics of ice load and how it affects concrete dams located in a cold climate, such as Sweden, where the temperature becomes sufficiently cold to freeze the surface of the reservoir. The purpose of this thesis is to study ice load distribution along concrete dams, and its response during the application of an ice load. READ MORE

  4. 3. Finite Element Analysis of the Dynamic Effect of Soil-Structure Interaction of Portal Frame Bridges - A Parametric Study

    University essay from KTH/Bro- och stålbyggnad

    Author : Turgay Dagdelen; Shaho Ruhani; [2018]
    Keywords : Soil-Structure Interaction; Railway Bridge; Portal Frame Bridge; Dynamic Analysis; Parametric Study; Nonlinear Analysis; Jord-struktur interaktion; Järnvägsbro; Plattrambro; Dynamisk analys; Parametrisk studie; Icke-linjär analys;

    Abstract : In Sweden, the railway sector currently faces the challenge of developing its first high-speed railway line, in response to the need to provide faster domestic and international transport alternatives. High-speed train passages on railway bridges can cause resonance in the bridge superstructure, which induce high accelerations that should not exceed the limits stipulated in the current design code. READ MORE

  5. 4. Analysis of suspended bridges for isolated communities

    University essay from Lunds universitet/Avdelningen för Konstruktionsteknik

    Author : Viktor Hermansson; Jonas Holma; [2015]
    Keywords : Suspended bridge; wind loads; dynamic response; vibrations; cables; FE-analysis; modal superposition.; Technology and Engineering;

    Abstract : Light suspended bridges are often used to connect villages or trail systems in geographical areas with lacking infrastructure and demanding topology. Different international non-profit organizations in collaboration with local promoters are building these bridges with the purpose of connecting isolated communities with health care and education. READ MORE

  6. 5. Olinjärt ultraljud för undersökning av sprickor i skelettet hos häst, en pilotstudie

    University essay from SLU/Dept. of Clinical Sciences

    Author : Katarina Sandelin; [2015]
    Keywords : skelettskada; NAW; sidband; mikrosprickor; fraktur; micro cracks; fracture; fissure; side band;

    Abstract : Fissurer och odislocerade frakturer hos häst kan ibland vara svåra att upptäcka utan avancerad bilddiagnostik. Det är dock viktigt att diagnostisera dem i tid för att hindra att skadorna förvärras. READ MORE