Sökning: "Hardening behaviour"
Visar resultat 1 - 5 av 85 avhandlingar innehållade orden Hardening behaviour.
1. Modelling and simulation of plastic deformation on small scales : interface conditions and size effects of thin films
Sammanfattning : Contrary to elastic deformation, plastic deformation of crystalline materials, such as metals, is size-dependent. Most commonly, this phenomenon is present but unnoticed, such as the effect of microstructural length scales. LÄS MER
2. Elastoplasticity of Grey Cast Iron FE-Algorithms and Biaxial Experiments
Sammanfattning : This thesis focuses on multiaxial elastoplastic behaviour of graphitic grey cast iron with the aim to provide physically appropriate and numerically reliable constitutive relations for use in FE-codes. To achieve this goal, this work is divided into three parts: Biaxial experiments are performed on thin cruciform specimens. LÄS MER
3. Plastic behaviour of steel : experimental investigation and modelling
Sammanfattning : This thesis deals with the plastic behaviour of steel. It comprises an investigation with focus on biaxial tests and constitutive modelling. Tests were performed on one stainless steel grade in two different strength classes, C700 and C850, as well as one extra high strength structural steel grade. LÄS MER
4. Modelling of the cyclic behaviour of superalloys
Sammanfattning : In the aviation industry today there is a trend of increasing operating temperatures in turbine engines. The advantages with higher temperatures in the engines are improved performance and efficiency. LÄS MER
5. The Precipitation and Deformation Behaviour of Superaustenitic Stainless Steel
Sammanfattning : The present study concerns the precipitation behaviour and the deformation characteristics of a superaustenitic stainless steel with composition Fe-24Cr-22Ni-7.3Mo-0.5N (wt%). Regarding precipitation, also materials with Mo partially replaced by W have been studied. LÄS MER