Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"cyclic plasticity"”.
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Cyclic Plasticity and Structural Energy Dissipation
Made available in DSpace on 2014-12-12T00:25:55Z (GMT). No. of bitstreams: 1 7412152.pdf: 2785519 bytes, checksum: 65ce64d882568d86691ed018f4f8d9b6 (MD5) Previous issue date: 1973
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A Stress Analysis of Circular Cylindrical Shell Intersections, Including the Influences of Reinforcement, Cyclic Plasticity and Fatigue
The intersection of cylinders is an unavoidable element in many engineering installations such as nozzle to cylinder connections in nuclear reactors or pressure vessels, pipe intersections in offshore platforms etc. The region of intersection presents a sharp geometric discontinuity in the …
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Characterization of cyclic plasticity type wear mechanism for titanium alloy, TI-6AL-4V on reciprocating sliding wear test
This study presents the characterization of cyclic plasticity type wear mechanism on reciprocating sliding wear test for Titanium alloy, Ti-6Al-4V. The reciprocating sliding wear test set up by pin-on-flat configuration made from Ti-6Al-4V. Dimension of flat bar used Contact material is 100 x 25 x …
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Structural integrity assessment of engineering components under cyclic loading at high temperature
… this thesis provides insights into cyclic plasticity and creep-cyclic plasticity behaviours of high temperature engineering problems which have not been explored in the past. A numerical study investigates cyclic plasticity behaviours of 90° back-to-back pipe bends under cyclic …
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Study on structural integrity of welded components using the LMM
… structural response of welded components under cyclic loading conditions and developing methods to predict their safe life is of significant importance. The work within this thesis focuses on the investigation of cyclic plasticity and creep-cyclic plasticity interaction of welded components, and …
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A Plasticity Theory of Metals Based on the Dislocation Substructures
A cyclic plasticity model developed from the microscopic deformation mechanism of metals is suggested. In the development of such a mechanistic model, the dislocation substructure of metals under different loadings is studied. Based on the observed substructure, the deformation mechanism of metals …
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On a Proposal for a Continuum With Microstructure
… appropriateness of our equations to model creep, cyclic plasticity, and fatigue, is illustrated.
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Numerical analysis of plastic deformation in metal-ceramic nanolayers during cyclic indentation
… finite element method. Attention is devoted to cyclic response under fixed maximum and minimum loads, with the primary objective of examining the evolving plastic deformation in the ductile metal constrained by the hard ceramic layers. An axisymmetric model consisting of alternating aluminum …
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Finite Element Modelling of Deep Zone Residual Stresses in Rolling Contact Bearing Elements.
… a semi- empirical material model. The cyclic hardening parameters are determined from spatial and temporal analysis of localised hardness change in evolved bearing material microstructure. This micromechanical response is incorporated into a non-linear isotropic kinematic (NIKH) …
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Design by analysis of a fixed tube sheet heat exchanger subject to in-phase proportional loading
… It is shown that exchanger shakes down to cyclic plasticity after showing some initial ratcheting behaviour under multilinear kinematic model. Under this material model, magnitude of plastic strains are small and are confined within surrounding elastic media, this has been proved by …
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Zyklische Plastizität von mikro- und submikrokristallinem Nickel
Im Rahmen der vorliegenden Arbeit wurde der Einfluss der Korngröße und der Gefügestabilität auf die zyklische Plastizität von mikro- und submikrokristallinem Nickel, hergestellt durch ECAP und PED, untersucht. Zur Gefügecharakterisierung kamen verschiedene elektronenmikroskopische und …