Sökning: "finite fracture mechanics"
Visar resultat 1 - 5 av 27 uppsatser innehållade orden finite fracture mechanics.
1. 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
2. Life extension of welded steel details in bridges
Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanikSammanfattning : High-Frequency Mechanical Impacts (HFMI) is a surface treatment technique utilized to introduce residual stresses and extend the service life of structures. This project primarily focuses on studying the life extension effects of HFMI on welded structures that have undergone fatigue and have existing cracks. LÄS MER
3. Fatigue Crack Growth Analysis in Python algorithm with Finite Element Methods : Numerical Simulation of Fatigue Crack Growth
Master-uppsats, Karlstads universitetSammanfattning : The goal of this thesis was to construct and develop a python-based finite element computer program for the evaluation of fatigue crack growth rate in notched metallic rods. The simulation was done by implementing elastic stress theory and linear elastic fracture mechanics techniques. LÄS MER
4. Design of passively loaded specimen for constant KI during crack growth
Master-uppsats, KTH/HållfasthetsläraSammanfattning : Passive loading of a specimen is a relatively cheap method to use in fracture mechanical testing compared to an actively loaded specimen. For stress corrosion cracking testing it is easier to use a passively loaded specimen since the specimen easily can be placed in a specific corrosive environment. LÄS MER
5. Evaluation of cracks in corrugated board, Evaluating cracks using Finite Element Method and J-integral
Master-uppsats, KTH/HållfasthetsläraSammanfattning : This report investigates whether a FEM model can be used to assess the risk of crack growth in corrugated board. A set of box geometries with cracks at different locations were loaded and then compared using the evaluated J-integral within the FEM software. LÄS MER