Sökning: "Hardening law"
Visar resultat 1 - 5 av 17 avhandlingar innehållade orden Hardening law.
1. Prediction of springback in sheet metal forming: with emphasis on material modeling
Sammanfattning : The prediction of springback is probably the area in sheet metal forming simulation, where the least success has been achieved in terms solution accuracy. The springback is caused by the release of the residual stresses in the work piece after the forming stage. LÄS MER
2. Prediction of springback in sheet metal forming
Sammanfattning : The prediction of springback is probably the area in sheet metal forming simulation, where the least success has been achieved in terms solution accuracy. The springback is caused by the release of the stresses in the workpiece after the forming stage. LÄS MER
3. Modelling of Inelastic Effects in Metal Sheets and Identification of Material Parameters
Sammanfattning : The continuum modelling of the macroscopic behaviour of metallic sheets and the identification of corresponding material parameters for models selected are dealt with in the thesis. Thermodynamics with internal variables provides a framework for the derivation of the models. LÄS MER
4. 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
5. Thermally Conductive High-Density Polyethylene Composites for Ground Heat Exchangers
Sammanfattning : Today, the energy used for the heating and cooling of offices, shopping centres, schools, residential areas, andother buildings is as large as 50% of the total energy consumption in the world. The climate change, globalwarming, and environmental issues have forced high requirements for energy efficiency and clean energyproduction in buildings. LÄS MER