Sökning: "discrete dislocation"
Visar resultat 1 - 5 av 6 avhandlingar innehållade orden discrete dislocation.
1. Numerical Modeling of Plasticity in FCC Crystalline Materials Using Discrete Dislocation Dynamics
Sammanfattning : Plasticity in crystalline solids is controlled by the microscopic line defects known as “dislocations”. Decisive role of dislocations in crystal plasticity in addition to fundamentals of plastic deformation are presented in the current thesis work. LÄS MER
2. Numerical Modelling of Short Fatigue Crack Growth
Sammanfattning : Fatigue implies repeated loading and unloading of a structure, and components subjected to fatigue might experience nucleation of cracks, and subsequent crack propagation. This might lead to catastrophic consequences, such as complete failure of a structure. LÄS MER
3. Integral equation methods for fracture mechanics and micro-mechanical problems
Sammanfattning : .... LÄS MER
4. Multiscale modelling of radiation-enhanced diffusion phenomena in metals
Sammanfattning : A multiscale modelling framework and an experiment campaign are used to study void swelling and Cu precipitation under irradiation. Several aspects regarding defect and solute diffusion under irradiation have been studied in this thesis. LÄS MER
5. Atomistic simulations of lattice defects
Sammanfattning : Mechanical properties of solids are governed by crystal imperfections. Computational materials science is largely concerned with the modelling of such defects, e.g. their formation, migration, and interaction energies. LÄS MER