Sökning: "Mechanical stresses"
Visar resultat 1 - 5 av 400 avhandlingar innehållade orden Mechanical stresses.
1. Railway wheel steel behaviour upon thermo-mechanical loadings
Sammanfattning : Optimised railway maintenance techniques such as rail grinding and milling, or rail repair welding, are vital to more sustainable rail networks. As demands on the railway increases, the need to better understand the material behaviour during local heating events occurring during maintenance is amplified. LÄS MER
2. Deformations and stresses in welded pipes : numerical and experimental investigation
Sammanfattning : In this dissertation, deformations and stresses in welded pipes have been studied both numerically and experimentally. The aim of this work has been to investigate and verify finite element models for simulation of the fabrications of two types of pipe joints. LÄS MER
3. Modelling and simulation of mechanical cutting
Sammanfattning : The commercial success of a new product is influenced by the time to market. Shorter product lead-times are of importance in a competitive market.This can be achieved only if the product development process can be realised in a relatively small time period. LÄS MER
4. Thermal impact on rolling contact fatigue of railway wheels
Sammanfattning : Rolling contact fatigue (RCF) is a very common and costly damage mechanism for rails and wheels. This thesis investigates the influence of combined thermal and mechanical loading on RCF of railway wheels on the basis of numerical predictions. LÄS MER
5. Microstructure-based Mechanical Behaviour in Structural Analyses of Cast Components
Sammanfattning : In the process of developing cast iron and cast aluminium components, the co-operation between product development and production is important. On the engineering level, this co-operation is limited already in the product development phase e.g. by the lack of established methods to consider the mechanical behaviour of the completed component. LÄS MER