Abstract: The behavior of one way composite pre-slabs were studied. An experimental program was carried out to test nine simply supported slabs, one of them was reference monolithic slab and the remaining eight slabs were composite pre-slabs composed of two concrete layers. The composite preslabs were divided into three groups to investigate the effect of shear connectors length and ratio, and interface roughness on the behavior of pre-slabs. Also a theoretical analysis was carried out to confirm the experimental program. It was concluded from these experiments that increasing of shear connectors length or ratio led to increase horizontal shear capacity. Also, the interface roughness had a pronounced effect on the horizontal shear capacity of the composite pre-slab

• Publication Date: 27-Sep-2015
• DOI: 10.15224/978-1-63248-070-5-47
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Abstract: n this paper, the fatigue analysis part of a project which aims to develop a computer aided methodology for developing/designing of the polyethylene fuel tanks is presented. The fatigue performance of the polyethylene material based on the stress-life (S-N) approach is obtained by coupon tests. Dynamic “g forces”, which act on the fuel tanks as base excitations, are obtained from the specific bad road runway experiments by the Mercedes-Benz Turk (MBT) R&D Center. In the finite element simulation, dynamic stresses are obtained for different fullness ratios of the tank by using PERMAS V15. Fluid-structure interaction problem is also considered, fluid (fuel) is modeled with acoustic elements, and structure (tank) is modeled with shell elements. Fatigue life prediction of the fuel tank is conducted by using the FEMFAT (Finite Element Fatigue Analysis) program. After evaluating results, some geometry optimization is performed. Finally, all fatigue analysis results are compared with the hydr

• Publication Date: 27-Sep-2015
• DOI: 10.15224/978-1-63248-070-5-48
• Views: 0
• Downloads: 0