Sökning: "numeriska analyser."

Visar resultat 1 - 5 av 27 uppsatser innehållade orden numeriska analyser..

  1. 1. Numerical analysis of a bearing strength in delaminated composite joint

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Olavi Kukkonen; [2023]
    Nyckelord :Bearing strength; Single-lap shear; Delamination; Countersinking; Hole size;

    Sammanfattning : Composite structures are commonly joined using adhesive or mechanical joints, withmechanical joints being preferred when components need to be removable for maintenancepurposes. However, the presence of mechanical joints introduces a discontinuity in theload path, which can serve as an initiation point for failure and needs to be taken intoaccount in the design of the joint. LÄS MER

  3. 2. Tunnelbyggande vid partiell bergtäckning : En fallstudie av Nacka Centrums tunnelbanestation

    Master-uppsats, KTH/Jord- och bergmekanik

    Författare :Elias Rydhäll; Anton Bergholm; [2023]
    Nyckelord :;

    Sammanfattning : I samband med urbanisering av städer ökar omfattningen av byggda delar och antalet pågående byggnadsprojekt. Den ökade bebyggelsen i kombination med samhällets intresse leder till att projekt utförs med minskad möjlighet att välja lämplig plats. LÄS MER

  4. 3. Back analysis of rock mass properties in the regional fault zone under Lake Mälaren

    Master-uppsats, KTH/Jord- och bergmekanik

    Författare :Jiaqi Liu; [2022]
    Nyckelord :Rock mass property; back analysis; tunnel deformation; optimization algorithm; numerical analysis; Bergmassans egenskaper; bakåtanalys; tunnleldeformation; optimeringingsalgoritm; numeriska analyser.;

    Sammanfattning : The properties of the surrounding rock mass in underground projects have significant impacts on the design and construction. However, it is quite challenging to evaluate rock mass properties due to the great uncertainties of the geological conditions. LÄS MER

  5. 4. Evaluation of a testing method for shear stiffness properties for cross laminated timber

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

    Författare :Calle Lind; [2022]
    Nyckelord :CLT; cross laminated timber; EN 16351; four-point bending; rolling shear modulus; FE-modelling; Technology and Engineering;

    Sammanfattning : Cross laminated timber (CLT) is an engineered wood product that was first developed in the 1990s. Since then it has grown in popularity thanks to its many advantages such as: low environment impact, high degree of prefabrication and low weight. As the material is relatively new the standardization process is still in the early stages. LÄS MER

  7. 5. Performance of reinforced concrete bridges strengthened with Carbon Fiber Reinforced Polymers : Case study: Essinge Bridge over Pampaslänken

    Master-uppsats, KTH/Bro- och stålbyggnad; KTH/Jord- och bergmekanik

    Författare :Zeinab Mirzahassanagha; Eva Malo; [2021]
    Nyckelord :CFRP; External Strengthening Method; RC Bridges; Curved Substrate; Finite Element Modelling; Kolfiberväv; Extern Förstärkningsmetod; Betongarmerade broar; Konkav yta; Finita Elementa Modellering;

    Sammanfattning : This master thesis deals with the performance of existing reinforced concrete bridges strengthened with externally bonded carbon fibre reinforced polymers (CFRP). One of the main aims of this work is to understand the functionality of such an external strengthening method applied to a concave surface in a heavy concrete structure such as a bridge. LÄS MER