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| Title: | Comparison of some plastic-flow surfaces using a finitive element Elasto-Visco-Plastic computer programme |
| Authors: | Taban-Wani, Gyavira
Mwakali, Jackson Araali |
| Keywords: | Comparative analysis
plastic flow surfaces
Elasto-visco-plastic algorithm
under-ground hydro electric-power stations |
| Issue Date: | 26-Aug-2004 |
| Citation: | 29th conference on OUR WORLD IN CONCRETE & STRUCTURES: 25 - 26 August 2004, Singapore |
| Abstract: | In this paper, the authors present comparative analysis in the performance of Botkin, Pisarenko-Lebedev and Geniev-Balandin plastic flow surfaces. A number of various existing structures are used in the analysis. The above surfaces are incorporated in the finitive element models used for calucations. The computer application programme used in the calculations incorporates the elasto-visco-plastic algorithm model based on the associated rule of plasticity and the Bingham-Shvedov law of proportionality of stress level to the visco-plastic strain rate.
In the analysis, care is taken to accommodate the effect of singularity at the corners of the surfaces. The performance of the above model is compared with corresponding models incorporating the classical plastic flow surfaces;namely:
Mohr-Coulomb, Von-Mises,Tresca and Drucker-Prager surfaces.Different engineering materials are incorporated in the study for the identification of the suitability of application with one or the other of the given surfaces. Specially, examples involving soil structure interaction are emphasized. Suitable Recommendations are formulated relating to their applicability to approximate (i.e model) in-situ conditions. |
| URI: | http://hdl.handle.net/123456789/88 |
| Appears in Collections: | Conference and Workshop Reports (Tech)
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| TabanWani_Araali.PDF | | 4183Kb | Adobe PDF | View/Open |
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