Optimization of thin spherical shell structure using FEM

Nachiar, S. Sindhu; Anandh, S.; Swathi, K.; Pennarasi, G.

doi:10.1016/j.matpr.2022.05.072

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…TCFST columns can obtain a first-level fire-resistance rating by using an appropriate thickness of the fire protection layer [4], [5]. Experimental verifications that test the specimens into extremely nonlinear areas show that element model analysis may properly forecast the buckling consequences [6], [7]. As the number of steel strips grows, so does the restraining effect of steel strips, the energy dissipation capacity, and the plastic deformation performance of specimens [8], [9].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Behaviour of Folded Plate

Dhanabal¹,

Reddy

Sushmitha

2023

J. Mod. Mater.

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Persistence of research was towards the behaviour of folded plate. In this project, we used GGBS blended ferrocement concrete to cover a folded plate 600 mm x 1800 mm x 150 mm. Ferro cement is a building material that is emerging as an alternative for traditional RCC. According to prior research, folded plates are the most cost-effective and visually acceptable option for longer span roofs. First, we built the folded plate model in ANSYS and investigated its behaviour in terms of load versus deflection. Later, for experimental purposes, we cast a folded plate coated with GGBS mixed ferrocement concrete. The results of the experimental inquiry demonstrate that there was an improvement in flexural behaviour when compared to the traditional model. The same was verified using ANSYS findings. ANSYS analysis aids in comparing and summarising experimental data. Both the analytical and experimental inquiry results show that ferro cement structures are a good alternative to RCC since they are less costly and lighter. Because folded plates retain their effectiveness for a longer length of time when Ferro cement is utilised. Ferro cement has made the components smaller to support the load because ferro cement parts are high in stress when reinforcement is spread.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Behaviour of Folded Plate

Dhanabal¹,

Reddy

Sushmitha

2023

J. Mod. Mater.

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“…An experimental investigation of the tensegrity dome proved that the structure offered good resistance for symmetrical loading under static conditions and the stress-strain curve was also found to be linear. For the optimization of thin shell size and shape, the mesh, geometric parameters and loading conditions have a predominant role [25,26].…”

Section: Introductionmentioning

confidence: 99%

Optimizing Mesh Sizes of Thin Shells Using Biomimicry for a Sustainable Solution

Gunasekaran,

Nachiar,

Sekar

2023

JBBBE

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Nature always has the ability to offer various solutions in day-to-day life of humans in various fields of engineering and science. The term biomimicry refers to the process of adopting solutions from nature to solve complicated problems that refers to analysing the environment for sustainable solutions. This concept is used in various fields of engineering and science. This concept is emerging now in the field of construction also. Biomimics concept is used in analysing the behaviour of structural elements which forms a symbiosis between the environment and construction. In the field of construction, thin shell structures are lightweight structures that are preferred as roof elements for covering high spans and also gives an aesthetic appearance. In this study, three different shapes like spherical with different rise to span ratios, circular and elliptical are considered. The concept of reflecting the human skull shape into thin shell structures was considered, because the reflection from the environment helps in solving the complicated problems of both engineering and sciences. This study focused on the mesh convergence study for numerical analysis using Ansys 18.1 software. The parameters of the thin shells such as thickness, span and rise were taken from the geometrical characteristics of scanned human skull models in comparison with the standard skull models. From the results, mesh sizes were optimized for the three different shapes considered and also predicted the most efficient model. These results were obtained based on the equivalent stress in comparison with the theoretical stresses of the respective models. This study inspires the naturally available forms in the environment to incorporate it in the field of construction and technology for a sustainable solution.

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