Sökning: "Crack"
Visar resultat 16 - 20 av 539 avhandlingar innehållade ordet Crack.
16. Engineering aspects of fatigue crack growth in metal
Sammanfattning : .... LÄS MER
17. Initiation and early crack growth in VHCF of stainless steels : Experimental and theoretical analysis
Sammanfattning : Mechanical fatigue is a failure phenomenon that occurs due to repeated application of mechanical loads. Very High Cycle Fatigue (VHCF) is considered as the domain of fatigue life greater than 10 million load cycles. LÄS MER
18. Oxygen Induced High Temperature Crack Growth in Ni-base Superalloys
Sammanfattning : Oxygen induced crack growth is a serious concern for the performance of Ni-base superalloys. These alloys are used in gas-turbine engines where they are exposed to hightemperatures, mechanical loads and oxygen-rich environments. LÄS MER
19. Predicting shear type crack initiation and growth in concrete with non-linear finite element method
Sammanfattning : In this thesis, the possibility to numerically describing the behaviour that signifies shear type cracking in concrete is studied. Different means for describing cracking are evaluated where both methods proposed in design codes based on experiments and advanced finite element analyses with a non-linear material description are evaluated. LÄS MER
20. Behaviour of fracture process zones in concrete influenced by simultaneously applied normal and shear displacements
Sammanfattning : The thesis deals with the determination of the post peak behaviour of concrete in pure tension, and combined tension (compression) and shear. A test arrangement has been developed in order to determine the post peak behaviour of concrete expressed as stress - displacement curves. LÄS MER