Sökning: "lefm"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet lefm.

  1. 1. Thermo-Mechanical Fatigue Assessment of Marine Boiler : Using linear Finite Element Analyses

    Magister-uppsats, Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Författare :Adefemi Samuel Alagbada; [2020]
    Nyckelord :Marine Boiler; FEA; Thermo-mechanical Loading; LEFM; Paris law; Flaws; RAO.;

    Sammanfattning : This thesis is on fatigue crack growth assessments of a thermomechanical loaded Marine Boiler- Sunrod CPDB12. The installation position of the marine boiler in the ship in relation to its fatigue life under mode 1 loading is investigated. LÄS MER

  3. 2. Estimation of Fatigue Life for Welded Gears Using LEFM

    Master-uppsats, KTH/Hållfasthetslära (Avd.)

    Författare :Richard Tynander; [2017]
    Nyckelord :;

    Sammanfattning : The aim of this thesis is to estimate the high cycle fatigue life of welds using finite element methods and liner elastic fracture mechanics (LEFM). Develop a new method of calculating the fatigue life that can replace the old method in use today at GKN Driveline. This is a continuation of an earlier master thesis1. LÄS MER

  4. 3. Stress Analysis of Different Shaped Holes on a Packaging Material

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Venkata Naga Sai Krishna Janardhan Parimi; Vamsi Eluri; [2016]
    Nyckelord :ABAQUS; Crack Initiation; EPFM; Geometric function; Hole shapes; LDPE; LEFM; Mode I tensile loading;

    Sammanfattning : In packaging industries, the demand for usage of Low Density Poly Ethylene foil is of profound interest. In the past, research was carried out on finite and infinite plates with varying crack lengths but having constant crack width. In this thesis, a detailed analysis on crack initiation is carried out on finite plates by varying width of the hole. LÄS MER

  5. 4. Accuracy Study in Predicting Fatigue Life for a Welding Joint.

    Magister-uppsats, KTH/Hållfasthetslära (Inst.)

    Författare :Emma Fredriksson; [2015]
    Nyckelord :;

    Sammanfattning : This thesis describes a comparative study between two calculations methods for life estimates of a welding joint. The two studied methods are the Effective Notch and Linear Elastic Fracture Mechanics (LEFM). The effective notch method is today used at GKN and gives an equitable accuracy relative the work effort for the method. LÄS MER

  7. 5. Design Method for Strut-Beam Connection in Hinged Frames

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Byggnadsmekanik

    Författare :Juan Cardenal; [2012]
    Nyckelord :ABAQUS; LEFM; failure modes; three-pin portal frames; shear stress; built-up haunches; framed joint; glulam; size effects; Technology and Engineering;

    Sammanfattning : Glulam is almost exclusively the chosen material of timber frame structures. Of those, three-hinged (three-pin) portal frames are incomparably the most common type. Being both statically determinate and stable against horizontal forces in its own plane offer both practical (basic constructive details) and economical benefits. LÄS MER