Sökning: "Elastic-plastic fracture mechanics"
Visar resultat 1 - 5 av 16 avhandlingar innehållade orden Elastic-plastic fracture mechanics.
1. Elastic-Plastic Fracture Mechanics and RCF in Rails
Sammanfattning : This thesis concerns issues regarding the modeling and numerical simulation of singularcracks and their propagation in the context of Rolling Contact Fatigue (RCF) in rails.Typically, such cracks are associated with squats and head-checks in the rail head. LÄS MER
2. Elastic-plastic fracture mechanics - Application to rolling contact fatigue in rails
Sammanfattning : Railway structures represent complex mechanical problems involving wave propagation, plastic deformations and material degradation. The wheel-rail contact loads subject the material to repeated cycles of complex stress states resulting in rolling contact fatigue (RCF). LÄS MER
3. Numerical models of ductile crack growth
Sammanfattning : .... LÄS MER
4. High-Temperature Durability Prediction of Ferritic-Martensitic Steel
Sammanfattning : Materials used for high-temperature steam turbine sections are generally subjected to harsh environments with temperatures up to 625 °C. The superior creep resistance of 9–12 % Cr ferritic-martensitic steels makes them desirable for those critical steam turbine components. LÄS MER
5. On structural integrity with emphasis on rate effects of fracture toughness
Sammanfattning : This thesis is concerned with structural integrity from a fracture mechanics point of view. The emphasis in this work is on rate effects of fracture toughness but all investigations deal with phenomena or problems within the frame work of non-linear fracture mechanics. LÄS MER