Sökning: "XFEM"
Visar resultat 1 - 5 av 11 uppsatser innehållade ordet XFEM.
1. Numerical method to investigate and assess the capacity of a damaged concrete structure : Using image analysis and advanced concrete modeling
Master-uppsats, KTH/Bro- och stålbyggnadSammanfattning : Concrete has for decades been one of the main materials used to construct important structuressuch as dams and bridges. However, after years of service, the concrete structuresstart deteriorating and signs of damages start showing on the structure. LÄS MER
2. Performance of reinforced concrete bridges strengthened with Carbon Fiber Reinforced Polymers : Case study: Essinge Bridge over Pampaslänken
Master-uppsats, KTH/Bro- och stålbyggnad; KTH/Jord- och bergmekanikSammanfattning : This master thesis deals with the performance of existing reinforced concrete bridges strengthened with externally bonded carbon fibre reinforced polymers (CFRP). One of the main aims of this work is to understand the functionality of such an external strengthening method applied to a concave surface in a heavy concrete structure such as a bridge. LÄS MER
3. Crack growth based FEM with embedded discontinuities
Master-uppsats, KTH/HållfasthetsläraSammanfattning : In recent years there have been a major developments in the computational mechanics community when it comes to modelling of fracture mechanics. There are now several well established numerical methods that are implemented in commercial programs such as: Phase Field Modelling, Enhanced Assumed Strain (EAS), Smeared Crack Methods, Extended Finite Element Method (XFEM) and Partition of Unity Finite Element Method (PUFEM). LÄS MER
4. Strain Rate Effect on Fracture Mechanical Properties of Ferritic-Pearlitic Ductile Iron.
Magister-uppsats, Linnéuniversitetet/Institutionen för byggteknik (BY)Sammanfattning : This study investigates the effect of strain rate on fracture properties of Ferritic-Pearlitic Ductile Iron. A series of dynamic three point bending tests, with various load application rates, are conducted on Charpy V-notch specimens, in room temperature and approximately -18 °C. LÄS MER
5. Simulation of Delamination Migration in Laminated Composite Structures - An Approach Combining Extended Finite Elements and a Cohesive Zone Model
Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/HållfasthetsläraSammanfattning : Fiber-reinforced polymer matrix composites are being used increasingly in lightweight applications where high strength and stiffness is required. One of the main challenges with designing components from such materials is to predict the ultimate strength and behaviour of the structure. LÄS MER