Sökning: "skalelement"

Visar resultat 1 - 5 av 15 uppsatser innehållade ordet skalelement.

  1. 1. Measuring social acceptability of mobile voice user interfaces

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Nevena Stojanovic; [2021]
    Nyckelord :;

    Sammanfattning : Even though mobile voice user interfaces have been available for several years, their use in the public space is still low. Voice user interfaces (VUI) introduce a new and highly visible behaviour, which raises questions if or where their use is socially acceptable. LÄS MER

  3. 2. Modelling Time-Dependent Effects for Segmentally Constructed Prestressed Concrete Bridges

    Master-uppsats, Lunds universitet/Avdelningen för Konstruktionsteknik; Lunds universitet/Institutionen för bygg- och miljöteknologi

    Författare :Niclas Elfving; Joel Sunesson; [2021]
    Nyckelord :Concrete; Creep; Segmentally constructed; Prestressing; Post-tensioning; Viscoelastic; Eurocode; Finite Element; Shell elements; Beam elements; Time-dependant; Steel relaxation.; Technology and Engineering;

    Sammanfattning : Tidsberoende effekter, såsom krypning, krympning och stålrelaxation, är ofta svåra att prediktera när det kommer till förspända betongkonstruktioner. Krypning som ett fenomen är komplicerat och förenklas därför i gällande byggnormer (Eurocode), för att underlätta konstruktörens arbete. LÄS MER

  4. 3. Behaviour of cross laminated timber elements with openings at out-of-plane loading conditions

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

    Författare :Christopher Hast; Daniel Fatemi; [2020]
    Nyckelord :CLT; Cross laminated timber; Grillage model; Gamma method; Bernoulli-Euler beam theory; Timoshenko beam theory; Finite element method; FEM; Composite; Abaqus; Technology and Engineering; Science General;

    Sammanfattning : The use of cross laminated timber (CLT) is expanding, its use is relatively new and universal design standards are lacking. One situation for which no universal design standard exists is that of a CLT plate element with an opening. A grillage method has been proposed as a convenient method to design such plate elements. LÄS MER

  5. 4. Compaction Simulation for Prepreg-AutoclaveManufacturing : Improvements and Simplifications of Two Compaction Simulation Methodologies

    Master-uppsats, KTH/Lättkonstruktioner

    Författare :Charlotte Chan; [2019]
    Nyckelord :;

    Sammanfattning : In a competitive market such as the aerospace industry, the use of manufacturing process simulation is vital to decrease time and cost of tooling and process development. In the autoclave process, to obtain an uniform part with no void, it is crucial to understand the compaction phenomenon. LÄS MER

  7. 5. 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