Sökning: "nonlinear finite element method"

Visar resultat 36 - 40 av 43 uppsatser innehållade orden nonlinear finite element method.

1. 36. Managing distortion in welded structures using FEM

   Master-uppsats, KTH/Lättkonstruktioner

   Författare :Mehdi Ghanadi; [2013]
   Nyckelord :;

   Sammanfattning : Welding as high productive joining method is widely employed in automotive, aerospace and shipbuilding industries. In practice, welding distortion brings about undesirable effects on production accuracy, appearance and strength of welded components. LÄS MER

3. 37. An Aeroelastic Implementation for YachtSails and Rigs

   Master-uppsats, KTH/Marina system

   Författare :Aron Helmstad; Tomas Larsson; [2013]
   Nyckelord :;

   Sammanfattning : An aeroelastic model has been developed to determine the elastic response of sailing yachts’ rigs and sails due to the aerodynamic pressure induced on the sails by the wind. A vortex-lattice method (VLM) is used to determine the aerodynamic pressure. The structural response is calculated with a non-linear finite element method (FEM). LÄS MER

4. 38. Nonlinear FEM load bearing capacity of a concrete bridge subjected to support settlements : Case of a continuous slab bridge with angled supports

   Master-uppsats, KTH/Bro- och stålbyggnad

   Författare :Daniel Hansson; [2013]
   Nyckelord :Nonlinear finite element method; concrete slab bridge; support settlements; load bearing capacity assessment; angled supports; Abaqus;

   Sammanfattning : A nonlinear finite element analysis was performed for an existing road bridge in order to see if that could show a higher load bearing capacity, as an alternative to repairing or replacing. The regular linear analysis had shown that the bridge could not take any traffic load due to the effects from large and uneven support settlements. LÄS MER

5. 39. Shear Strength of Reinforced Concrete Beams subjected to Blast Loading : Non-linear Dynamic Analysis

   Master-uppsats, KTH/Bro- och stålbyggnad

   Författare :Abbas Zangeneh Kamali; [2012]
   Nyckelord :Non-linear finite element analysis; Shear Strength; Reinforced Concrete; Normal Strength Concrete; Blast loading; Explicit Dynamic analysis; Design codes;

   Sammanfattning : The experimental investigations performed on the behaviour of reinforce concrete elements subjected to blast loading have revealed that the shear mechanisms and ductility play important roles in the overall response and failure mode of such structures. The main aim of this master thesis is to study the possibility of using finite element method as a tool for predicting the dynamic response of blast loaded reinforced concrete beams and evaluation of their shear strength. LÄS MER

7. 40. Sidostabiltet för limträbågar

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

   Författare :David Persson; [2010]
   Nyckelord :Technology and Engineering;

   Sammanfattning : Limträbågar med lång spännvidd har ofta ett väldigt högt och slankt tvärsnitt. Detta medför risk för vippningsinstabilitet. En jämnsymmetrisk belastning av bågen ställer oftast inte till något problem, men då bågen belastas osymmetriskt uppkommer stora böjmoment som ökar risken för instabilitet markant. LÄS MER