Pal, B and Ramaswamy, A (2021) Meso-Scale Study of Plain Concrete Beam Under Both Ambient and High Temperature. [Book Chapter]
Full text not available from this repository.Abstract
In this study, concrete is modelled at meso-level (10–4 −10 cm), where concrete is assumed either to be a two-phase or a three-phase composite. First the aggregates are placed in the structural domain randomly following a uniform distribution with the specific size and shape in order to capture actual aggregate gradation and placement process. The remaining space in the domain of concrete structure is then filled with the cement mortar in case of a two-phase assumption. However, in three phase modelling, part of the mortar of finite thickness surrounding the aggregates is assumed as ITZ which happens to be the weakest zone in the concrete structures. In this study, beam specimen in two dimensions (2D) has been considered and its behaviour under 4-point bending before and after it is subjected to a heating–cooling cycle is simulated. A finite element method (FEM) based approach is adopted here for the simulated study. A convergence study has been performed at ambient condition for different number of simulate beam specimens. The simulated load–deflection responses of the beam specimen subjected to different temperatures are then validated with the corresponding available experimental data.
| Item Type: | Book Chapter |
|---|---|
| Publication: | RILEM Bookseries |
| Series.: | RILEM Bookseries |
| Publisher: | Springer Science and Business Media B.V. |
| Additional Information: | The copyright for this article belongs to the Springer Science and Business Media B.V. |
| Keywords: | 4-point bending; Concrete; High temperature; Meso-scale model |
| Department/Centre: | Division of Mechanical Sciences > Civil Engineering |
| Date Deposited: | 14 Jul 2022 04:57 |
| Last Modified: | 14 Jul 2022 04:57 |
| URI: | https://eprints.iisc.ac.in/id/eprint/74360 |
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