Search for dissertations about: "Gradient plasticity"
Showing result 6 - 10 of 30 swedish dissertations containing the words Gradient plasticity.
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6. Modeling framework for ageing of low alloy steel
Abstract : Ageing of low alloy steel in nuclear applications commonly takes the form as a hardening and an embrittlement of the material. This is due to the evolution of the microstructure during irradiation and at purely thermal conditions, as a combination or separate. READ MORE
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7. Modeling of Inelastic Response of Metals with Emphasis on Cyclic Viscoplasticity
Abstract : This thesis is concerned with the continuum modeling of the macroscopic behavior of engineering metals, in particular as part of life prediction strategies. Focus is primarily placed on the formulation and numerics of models for cyclic rate-dependent response. READ MORE
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8. The effect of inelastic deformation on crack loading
Abstract : Rolling contact fatigue (RCF) cracks in rails are among the most detrimental railway track defects, in relation to reliability and cost. The cracks grow in a mixed mode II & III, which in combination with the rotating stress field in the neighborhood of the crack-tip, large plastic deformations on the rail surface, crack face friction due to the compressive stresses from the wheel load and anisotropic crack growth resistance, add to the complexity related to the study of RCF cracks. READ MORE
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9. Finite element procedures for crack path prediction in multi-axial fatigue
Abstract : Rolling Contact Fatigue (RCF) cracks in rails are among the most detrimental railway track defects regarding reliability and cost. The cracks typically grow in shear mode up to a certain length at which they might arrest or kink into a more tensile-driven growth. READ MORE
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10. A strain gradient plasticity analysis of size effects in thin films
Abstract : .... READ MORE