ANALYTICAL ESTIMATION OF RESISTANCE PERFORMANCE OF FIBER REINFORCED CONCRETE WALLS UNDER HIGH-SPEED IMPACT LOADING

摘要

In this paper, we focus on the assessment of the resistance performance of fiber reinforced concrete (FRC) walls with steel fiber and polyamide fiber comparing with normal concrete wall in analytical methods. Finite element analysis of reinforced concrete walls, which were applied with normal concrete, steel 1% FRC, and polyamide 2% FRC, respectively, was performed regarding impact load. Considering asymmetric feature of the model, a full 3D model was produced. The displacement, stress and equivalent plastic strain of the walls were presented. From the comparison of deformation area of the walls and the deformation of missile, the possibility of FRC walls as a measure against impact was estimated.