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In this study, 27 concrete cylinders with a diameter of 152.4and a height of 304.8mm were prepared. Among them, 18 cylinders were wrapped using two layers of fiber reinforced polymer (FRP) with six fiber orientations; six cylinders were wrapped using four layers of FRP with fibers in axial or hoop direction only; the remaining three cylinders were used as control. The FRP used was E-glass fiber reinforced...
A unified failure envelope for hybrid steel-polypropylene fibre reinforced concrete (HFRC) subjected to true triaxial compression is presented in this paper, aiming to predict the ultimate strength of HFRC under multiaxial compressions. The failure envelope based on a five-parameter failure criterion was developed which accounts for the presence of hybrid fibres. The model parameters were calibrated...
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