Sökning: "computational homogenization"

Hittade 4 uppsatser innehållade orden computational homogenization.

  1. 1. Micro-architectured materials for thermal management : Porous graphite/graphene boiling enhancement structures

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad mekanik

    Författare :Melody Ghaderidosst; [2022]
    Nyckelord :Microarchitecture; TPMS; Gyroid; thermo-mechanical; computational homogenization; graphite; graphene;

    Sammanfattning : The convergence of the digital and physical world encourages advances in high-speed telecommunication and fifth generation technology. Two-phase heat transfer systems are common engineering solutions. However, due to the large frequency spectra in 5G, the systematic heat generation increases requiring more efficient thermal management. LÄS MER

  3. 2. Micro-architectured materials for noise and vibration control in high voltage products – design and modelling

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad mekanik

    Författare :Alec Chamberlain; [2021]
    Nyckelord :Microarchitectured; lattice; elasticity; viscoelasticity; computational; homogenization;

    Sammanfattning : Many Hitachi ABB Power Grids (HAPG) products vibrate and emit noise, but legal limitations of these parameters fuel the development of energy absorption methods used on products. Methods such as Constrained Layer Damping (CLD). LÄS MER

  4. 3. Towards Identification of Effective Parameters in Heterogeneous Media

    Master-uppsats,

    Författare :David Johansson; [2020]
    Nyckelord :parameter identification; multiscale modelling; homogenization theory; partial differential equations; inverse modelling;

    Sammanfattning : In this thesis we study a parameter identification problem for a stationary diffusion equation posed in heterogeneous media. This problem is closely related to the Calderón problem with anisotropic conductivities. The anisotropic case is particularly difficult and is ill-posed both in regards to uniqueness of solution and stability on the data. LÄS MER

  5. 4. Design and Development of Light Weight High Entropy Alloys

    Master-uppsats, Högskolan i Jönköping/JTH, Material och tillverkning

    Författare :Akash Avinash Gondhalekar; [2019]
    Nyckelord :High Entropy Alloys; CCAs; Solid Solutions; Intermetallic Compounds; Thermodynamic; Multicomponent; Microstructure; Mechanical Properties;

    Sammanfattning : The main aim of this thesis was to design and develop new Aluminium based compositionally complex alloys (CCAs) using the high entropy alloy (HEA) concept, and to understand their evolution of microstructures during casting and also after the secondary process which is heat-treatment, and finally to evaluate their subsequent mechanical properties. Prior to the development of alloys, a computational technique ThermoCalc was used which helped in understanding the phase formation in various results. LÄS MER