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Numerical Analysis Of Unconventionally Reinforced Concrete Slabs Subjected To Impact Loads

Rozdział
Książka: Selected practical and theoretical aspects of contemporary mechanics   Rozdział: 9, Strony: 120-132
2015 angielski
Liczba arkuszy: 0,8
Cechy publikacji
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  • Rozdział w książce
  • Zrecenzowana naukowo
Dyscypliny naukowe
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Budownictwo
Słowa kluczowe
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Abstrakty ( angielski )
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The results of experimental tests and numerical analyses carried out on concrete elements produced from waste aggregate (ceramic rubble) and steel fibres have been presented in this study. The elements taken into consideration were circular plates of 1 m diameter, thickness 0.1 m, with various percentage of steel fibres. Main study has been performed for plates without steel fibres and for three variants of reinforcement: 0.5, 1.0 and 1.5 % of fibres (measured as the volumetric quantity). Three types of fibres have been considered. The plates have been supported in three small zones, disposed circumferentially by the angle of 120o. Impact loads have been realized by the free fall of 40 kg mass from the height of 1 m. After each impact the permanent deflections of the plate were measured in several selected points, as well as localization of cracks, their configuration and dimensions. Additionally, various static test on material samples have been carried out in order to find out the characteristic parameters necessary to define the material models in numerical simulations. Nonlinear Finite Element Method computer code ABAQUS was applied, and the continuous plastic damage model for concrete was used, where the damage is defined by two scalar parameters.
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