Sökning: "buckling curves"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden buckling curves.

  1. 1. Böjknäckning och utböjning av VKR-profiler

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Mustafa Ahmed; Khaldoon Barka; [2020]
    Nyckelord :VKR KKR-Profiles; buckling; column buckling; deflection; bendingcracking; windload; Eurokod; Abaqus; Excel; Mathcad; FE-analysis;

    Sammanfattning : This work has been done in collaboration with Northpower Stålhallar AB. The work is concentrating on column buckling, wind load and deflection of steel columns made of VKR profiles. VKR profiles are steel profiles that are hot-rolled structural pipes having a rectangular section. LÄS MER

  3. 2. Investigating In-plane Shear Behaviour of Uncured Unidirectional Prepreg Tapes

    Master-uppsats, KTH/Lättkonstruktioner

    Författare :Ming Kai Chea; [2019]
    Nyckelord :;

    Sammanfattning : Steering of prepreg tows in an automated fibre placement (AFP) process allows geodesic layup trajectory over a doubly-curved surface, as well as the potential to improve the efficiency of composite structures by tailoring their stiffness. However, defects (such as out-of-plane buckling and tow pull off) are commonly generated when the steering radius exceeds a critical limit, which impact the mechanical properties of the finished product. LÄS MER

  4. 3. Residual Stresses Induced by Welding in High Performance Steel

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Byggkonstruktion och brand

    Författare :Rebecca Erlingsdotter Stridsman; Felicia Månsson; [2018]
    Nyckelord :Residual Stresses; High Performance Steel; Heat transfer; Abaqus; Welding;

    Sammanfattning : Today, high performance steel as a construction material is treated as conventional steel in the European standards. Referring to the Eurocodes, the buckling curves for dimensioning of steel constructions only presents values up to steel grade S460, meaning that the full potential of high performance steel is not considered. LÄS MER

  5. 4. Difficulties in FE-modelling of an I-beam subjected to torsion, shear and bending.

    Master-uppsats, KTH/Byggvetenskap

    Författare :Miriam Alexandrou; [2015]
    Nyckelord :Difficulties; FE-modelling; I-beam; shear; torsion; bending; ABAQUS;

    Sammanfattning : In this thesis six different models of IPE240 have been created in order to study their behavior undershear, bending and torsion. These models simulate IPE240 but differ in the boundary conditions, inthe loading and the length of the beam and in some connections which connect certain elements. LÄS MER

  7. 5. Resistance of Members to Flexural Buckling According to Eurocode 3 : - Focus on Imperfections 

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

    Författare :Aliasgar Hirani; George John; Henry Mupeta; [2015]
    Nyckelord :buckling curves; buckling resistance; Eigen-value; Eurocode 3; flexural;

    Sammanfattning : This work focuses mainly on the resistance of members to flexural buckling according to Eurocode 3. The work provides the mathematical backgrounds to the equations and buckling curves presented in Eurocode 3. LÄS MER