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Geomechanics and Engineering Volume 5, Number 2, April 2013 , pages 165-185 DOI: https://doi.org/10.12989/gae.2013.5.2.165 |
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Experimental analysis on FEM definition of backfill-rectangular tank-fluid system |
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Tufan Cakir and Ramazan Livaoglu
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| Abstract | ||
| In the present study, the numerical and experimental investigations were performed on the backfill- exterior wall-fluid interaction systems in case of empty and full tanks. For this, firstly, the non-linear three dimensional (3D) finite element models were developed considering both backfill-wall and fluid-wall interactions, and modal analyses for these systems were carried out in order to acquire modal frequencies and mode shapes by means of ANSYS finite element structural analysis program. Secondly, a series of field tests were fulfilled to define their modal characteristics and to compare the results from proposed approximation in the selected structures. Finally, comparing the theoretical predictions from the finite element models to results from experimental measurements, a close agreement was found between theory and experiment. Thus, it can be easily stated that experimental verifications provide strong support for the finite element models and the proposed procedures themselves are the meritorious approximations to the real problem, and this makes the models appealing for use in further investigations. | ||
| Key Words | ||
| rectangular tank; forced vibration tests; finite element model; fluid-structure-soil interaction | ||
| Address | ||
| Tufan Cakir: Department of Civil Engineering, Gumuşhane University, 29000 Gumuşhane, Turkey; Ramazan Livaoglu: Department of Civil Engineering, Uludağ University, 16059 Bursa, Turkey | ||