28 Result(s) for ' plasticity'
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Context: An evaluation of aluminium alloy for plasticity applications was undertaken to bridge the gap in appraising the impact of variation of alloying elements such as magnesium (Mg) an...
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Large Strain Elasto plasticity
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Juraj Šarloši, Jozef Bocko
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American Journal of Mechanical Engineering. 2016 4 (7). doi: 10.12691/ajme-4-7-19
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Keywords: Elasto-Plasticity, Kirchhoff stress tensor, Cauchy stress tensor, elasto-plastic decomposition, Jauman rate, Truesdell rate
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Context: In this paper we present a continuum theory for large strain Elasto-Plasticity based on formulations: Eulerian Formulation and Multiplicative Elasto-Plasticity. The theories includes Cauchy and Kirchhoff stress tensor as well as Truesdell rate and Jauman rate for the Cauchy stress and the multiplicative elasto-plastic decomposition. We show detailed derivative for mentioned formulations.
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Context: The paper is focused on the process of selecting a suitable material plasticity model. Such a model would be used in the future numerical analysis of the behaviour of selected structural elements in the elastic...
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Context: ...to determine its applicability in industries. Grain size analysis reveals that clay-sized particles dominate the samples, with a plasticity index ranging from 6.8% to 20.67%. The mudrock materials are primarily composed of kaolinite (16.8-49.4%), quartz (15.8-68.9%), an...
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Context: ...ed when identifying materials in the preliminary study phase. The soils studied are clays (inactive and normal) of low to medium plasticity , containing minerals (kaolinite, illite, montmorillonite). The swelling potential of the soils varies from low, medium and high. T...
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Context: ...o represent concrete, cover plates and shear connector respectively. Behaviour of concrete is represented using concrete damaged plasticity model, while steel behaviour is modelled by using bilinear stress-strain curve. Beam is simply supported and is subjected to a cen...
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Geotechnical Assessment of Clay Deposits in Minna, North-Central Nigeria for Use as liners in Sanitary Landfill Design and Construction
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Amadi A. N., Okunlola I. A., Eze C. J., Jimoh M. O., Unuevho C. I., Abubakar Fahad
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American Journal of Environmental Protection. 2015 3 (3). doi: 10.12691/env-3-3-2
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Keywords: clay, geotechnical assessment, landfill design, barrier soils, containment, contamination, minna, north-central Nigeria
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Context: ...lassified as a clayey material. The liquid limit ranged from 45.5%-61% with a mean value of 51.8% which is an indication of high plasticity and low hydraulic conductivity, the plastic limit ranged from 29.2%-35.8% with a mean value of 32.44% and its plasticity index ran...
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Comparative Study of the physico-chemical Characterization of Three Arid Soils in the Hadjer Lamis Region (Chad)
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Timbe N’Djédanoum, François Ouedraogo, Sayouba Kabre, Ibrahim Pafadnam, Moussa Dit Corneille Tarpilga, Bétaboalé Naon, Francois Zougmore
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American Journal of Materials Science and Engineering. 2023 11 (2). doi: 10.12691/ajmse-11-2-2
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Keywords: arid, climate, physico-chemical, soil, organic matter, fertility
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Context: ... in the bottom of the sieves for the different samples, which are as follows: Dandi: 63.4%, Karal: 70.5%, Mani: 2.1%. Mani has a plasticity index (PI) that cannot be measured, while Dandi and Karal have plasticity indices of 4.75 and 21.15 respectively. Using the soil c...
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Context: ...rominent than granite-gneiss and schist. The index test results for the natural moisture content ranges from 11.19 – 24.08%; the plasticity index ranges from 0 – 5.21%; the sieve analysis result shows that coefficient of uniformity, Cu ranges from 3.37 and 29...
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Context: ...ponse of all specimens using the computer program SeismoStruct and adopting three different modelling strategies, such as lumped plasticity and distributed plasticity (based in displacements and forces formulations) that were adopted in order to obtain the real behaviou...
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