Sökning: "cracked"
Visar resultat 1 - 5 av 66 uppsatser innehållade ordet cracked.
1. Fracture simulation with a hyperelastic phase field model
Master-uppsats, KTH/HållfasthetsläraSammanfattning : The phase field method is a versatile tool to study crack initiation and propagation in systems with complex geometries. Based on a variational formulation of the equilibrium equations, the sharp crack topology is regularized by a crack with diffusive edges and the damage is described by a continuous phase field variable. LÄS MER
2. Impact of Residual Stress on the Warm Pre-Stressing Effect
Master-uppsats, KTH/HållfasthetsläraSammanfattning : Irradiation of a reactor pressure vessel (RPV) causes a shift of the ductile to brittle transition region towards higher temperature regions. In the event of a pressurized thermal shock (PTS), where the temperature drops drastically, the ductile to brittle transition region might be entered for irradiated ferritic steel. LÄS MER
3. Evaluation of Crack Depth Meter - An investigation of the crack depth meters possibilities and limitations for commonly occurring damage mechanisms
Master-uppsats, KTH/HållfasthetsläraSammanfattning : In this master thesis, the accuracy of the crack depth meter RMG 4015 was evaluated for different types of cracks with various damage mechanisms. In total, 61 crack depth measurements were conducted with the crack depth meter on 56 cracks which were located in the 23 different test pieces supplied by Kiwa. LÄS MER
4. Experimental studies of radiation damage in uranium nitride
Master-uppsats, KTH/FysikSammanfattning : The effect of proton (H+) irradiation on uranium mononitride (UN) and UN compositefuel with 10 at.% ZrN (UN10at%ZrN) was examined. Protons of 2 MeV with fluences of1E17, 1E18, 1E19 and 1E20 ions/cm2 were accelerated towards the fabricated samples in orderto investigate the evolution of the micro-structure. LÄS MER
5. Low-carbon hydrogen production from waste plastics via pyrolysis and in-line catalytic cracking process
Master-uppsats, KTH/Kraft- och värmeteknologiSammanfattning : This study develops a novel pyrolysis process combined with in-line catalytic reforming toproduce high purity hydrogen and carbon products from waste plastics. The input resource is waste plastic material in the form of discarded Covid masks. LÄS MER