Sökning: "constitutive model"
Visar resultat 16 - 20 av 328 avhandlingar innehållade orden constitutive model.
16. Numerical Model Reduction and Error Control for Computational Homogenization of Transient Problems
Sammanfattning : Multiscale modeling is a class of methods useful for numerical simulation of mechanics, in particular, when the microstructure of a material is of importance. The main advantage is the ability to capture the overall response, and, at the same time, account for processes and structures on the underlying fine scales. LÄS MER
17. Development of an Anisotropic Finite Element Head Model for Traumatic Brain Injury Prediction
Sammanfattning : Traumatic brain injury (TBI) is a worldwide health care problem with very high associatedmorbidity and mortality rates. In particular, the diagnosis of TBI is challenging: symptomsoverlap with other pathologies and the injury is typically not visible with conventionalneuroimaging techniques. LÄS MER
18. Hydro-mechanical forming of aluminium tubes : on constitutive modelling and process design
Sammanfattning : Tube hydroforming is a forming method which has several advantages. By using pressure in combination with material feeding it is possible to manufacture products with high structural integration and tight dimensional tolerances. The forming method is especially suited for aluminium alloys which have a relatively low ductility. LÄS MER
19. Constitutive models based on dislocation density : formulation and implementation into finite element codes
Sammanfattning : Correct description of the material behaviour is an extra challenge in simulation of the materials processing and manufacturing processes such as metal forming. Material models must account for varying strain, strain rate and temperature, and changing microstructure. LÄS MER
20. Multiphase continuum modeling of wood : A hybrid mixture theory approach
Sammanfattning : Wood has been used as a construction material for a very long time. The development of efficient industrial production processes of wood has expanded the use of the material with the introduction of new products, such as engineered wood products. LÄS MER