Search for dissertations about: "effective notch stress"
Showing result 1 - 5 of 14 swedish dissertations containing the words effective notch stress.
-
1. Fatigue Analysis of Welded Structures Using the Finite Element Method
Abstract : Fatigue design and analysis of steel and composite bridges is generally based on the notion of the nominal stress using the classified S-N curves with corresponding fatigue classes for typical details. Such an approach can yield unrealistic the estimation of the load effects for structure components because of an ever increasing number of structural details and loading situations resulting in a limited number of possible treatable design cases. READ MORE
-
2. Fatigue of steel bridges : New structural details and the implementation of high strength steel
Abstract : The use of high strength steel has the potential to reduce the amount of steel used in bridge structures and thereby facilitate a more sustainable construction. The amount of steel and what steel grade that can be used in bridge structures and other cyclic loaded structures are often limited by a material degradation process called fatigue. READ MORE
-
3. Fatigue evaluation of welded details – using the finite element method
Abstract : The fatigue evaluation of welded details is generally based on the notion of nominal stress, using the classified S-N curves with corresponding fatigue classes for typical details. An approach of this kind should be used with extra caution to ensure that the load effects for components are accurately captured, because an ever-increasing number of welded details are resulting in a limited number of possible treatable design cases. READ MORE
-
4. Computational weld mechanics - Increased accuracy in fatigue assessment, distortion and residual stress analysis
Abstract : This thesis work is concerned with the mechanical response of welded steel structures, which are distortions, residual stresses, and fatigue. The accuracy of fatigue assessment, distortion and residual stress analysis using Computational weld mechanics (CWM) is focused. READ MORE
-
5. Improving fatigue properties of welded high strength steels
Abstract : In recent years a strong interest has been expressed to produce lighter structures.One possible solution to reduce the weight is to utilize high strength steels and use welding as the joining method. READ MORE