Sökning: "stress extrapolation"

Hittade 5 uppsatser innehållade orden stress extrapolation.

  1. 1. Generating Extreme Value Distributions in Finance using Generative Adversarial Networks

    Master-uppsats, KTH/Matematik (Avd.)

    Författare :William Nord-Nilsson; [2023]
    Nyckelord :Extreme Value Theory; Generative Adversarial Networks; Stress Testing; Machine Learning; Convolutional Neural Networks; evtGAN; Extreme Events; Extremvärdesteori; Generativa nätverk; Stresstestning; Maskininlärning; Djupt neuralt nätverk; evtGAN; Extrema händelser;

    Sammanfattning : This thesis aims to develop a new model for stress-testing financial portfolios using Extreme Value Theory (EVT) and General Adversarial Networks (GANs). The current practice of risk management relies on mathematical or historical models, such as Value-at-Risk and expected shortfall. LÄS MER

  3. 2. Experimental Testing and MaterialModeling of Anisotropy in InjectionMoulded Polymer Materials

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Sharlin Shahid; Widaad Gukhool; [2020]
    Nyckelord :Anisotropy; Barlat2004; DIC; Hill48; Polyethylene; Tensile test;

    Sammanfattning : Experimental characterization of the mechanical properties in a thin injection moulded Low-Density Polyethylene (LDPE) plate is per- formed in this work. Anisotropy in LDPE at different material orientations is measured from the Digital Image Correlation (DIC) observation of the specimens during uniaxial tensile test. LÄS MER

  4. 3. Infuence of the modelling of truss joints made of hollow tube sections in finite element models

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Mattheüs Lucassen; [2019]
    Nyckelord :Truss joints; Circular Hollow Sections CHS ; Fatigue; Finite Element Modelling FEM ; Crane; Boom section; Local joint exibility LJF ; Stress concentration factors SCF ; Fackverksled; Cirkulära ihåliga proler; Utmattning; Finita Elementmetoden FEM ; Kran; Kranarmsektion; Lokal ledexibilitet; Spänningskoncentrationsfaktorer.;

    Sammanfattning : Several boom segments form the crane boom. These segments are often truss structures formed out of circular hollow sections, which are welded together forming the truss joints. A adequate modelling of these truss joints is very important for operational strength and life. LÄS MER

  5. 4. Miljögifter – ett hot mot isbjörnens överlevnad?

    Kandidat-uppsats, SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Författare :Jannike Ring; [2014]
    Nyckelord :isbjörn; miljögifter; klimatförändring; organokloriner; kvicksilver; PCB; DDT; PFC; polar bears; climate change; pollutans; organochlorines; mercury;

    Sammanfattning : De rådande klimatförändringarna drabbar Arktis och dess isbjörnar hårt. Smältande isar frigör miljögifter som i årtionden lagrats upp och kan nu ta sig in i och biomagnificeras i den marina näringskedjan, där isbjörnen som toppredator utsätts för hög toxisk stress. LÄS MER

  7. 5. A finite element based design tool for point fixed laminated glass

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Väg- och vattenbyggnad (CI); Lunds universitet/Byggnadsmekanik

    Författare :Jens Malmborg; [2006]
    Nyckelord :stress extrapolation; 15-node wedge element; wedge element; Fortran; Python; toughened glass; laminated glass; bolt fixed glass; FEM; finite element analysis; discontinuous stress distribution; sparse matrix; Technology and Engineering;

    Sammanfattning : In this master’s project, a design tool for bolt fixed laminated glass was developed, based on linear-elastic finite element theory. The program produces images of the deflections and stress distributions in bolted glass panes. LÄS MER