Sökning: "crack initiation"
Visar resultat 1 - 5 av 108 avhandlingar innehållade orden crack initiation.
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2. Initiation and early crack growth in VHCF of stainless steels Experimental and theoretical analysisDetta är en avhandling från Karlstad : Karlstads universitet
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
3. Failure of thermal barrier coatings under thermal and mechanical fatigue loading : microstructural observations and modelling aspectsDetta är en avhandling från Linköping : Linköpings universitet
Sammanfattning : Industrial and air-borne gas turbine hot components suffer from creep, oxidation, corrosion and microstructural degradation if not shielded from the hot and aggressive combustion gases. Two major strategies commercially available are adopted; film cooling by pressurised air and application of protective coatings. LÄS MER
4. On initiation of chemically assisted crack growth and crack propagation paths of branching cracks in polycarbonateDetta är en avhandling från Ulf Hejman/Media-Tryck AB
Sammanfattning : Stress corrosion, SC, in some cases gives rise to stress corrosion cracking, SCC, which differs from purely stress intensity driven cracks in many aspects. They initiate and grow under the influence of an aggressive environment in a stressed substrate. They grow at low load and may branch. LÄS MER
5. Predicting shear type crack initiation and growth in concrete with non-linear finite element methodDetta är en avhandling från Stockholm : KTH
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