Sökning: "shear and torsion interaction"
Hittade 4 avhandlingar innehållade orden shear and torsion interaction.
1. Shear and Torsion Interaction in Prestressed Hollow Core Slabs
Sammanfattning : There are many applications in which hollow core units are subjected to combined torsion and shear, for example in floors supported on three edges and in floors with openings. The traditional calculation method for combined shear and torsion in hollow-core units adds stresses from various sources without taking into account deformations and compatibility within the unit or restraint at the boundaries. LÄS MER
2. Influence of combined thermal and mechanical loadings on pearlitic steel microstructure in railway wheels and rails
Sammanfattning : One of the most important aspects in railway operation is the interaction between rail and wheel. The contact patch between these two components is around the size of a small coin, and since high loads act on this small area, stresses will give rise to wear and damage in both components. LÄS MER
3. Anisotropy in pearlitic steel subjected to rolling contact fatigue - modelling and experiments
Sammanfattning : In rails and wheels subjected to severe rolling/sliding contact, large plastic deformations accumulate in the surface layer. This decreases the fatigue resistance of components and makes this layer prone to formation of common rolling contact related defects. LÄS MER
4. Ductility in high performance concrete structures : an experimental investigation and a theoretical study of prestressed hollow core slabs and prestressed cylindrical poles
Sammanfattning : The thesis presents results from a project dealing with ductility in high performance concrete structures. The main objectives were to investigate the material and structural ductility/brittleness of prestressed structural elements of High Performance Concrete (HPC). LÄS MER