NUMERICAL SIMULATION OF BLAST-RESISTANCE OFAFRP-STRENGTHENED REINFORCED CONCRETE BEAMS

Abstract

Abstract: Three-dimensional finite element models of reinforced concrete (RC) beams non-strengthened and strengthened with aramid fiber reinforced composite (AFRP) under blast loading were established using nonlinear finite element ANSYS/LS-DYNA software in this paper. The damage distributions and maximum mid-span displacements of non-strengthened and AFRP strengthened RC beams were compared. The numerical results indicates that AFRP can not only change the damage model of the RC beam, but also significantly reduce the deformation of the RC beams. And the maximum mid-span displacement of AFRP-strengthened beam is reduced by about 50.7%. In addition, the effects of the strengthened modes, the strengthened sizes, the AFRP layers and the FRP types of the blast-resistance of reinforced concrete beams were analyzed.

Key words: AFRP, reinforced concrete beam, numerical simulation, blast-resistance, blast loading

CLC Number:

TB332

KONG Xiang-qing, QI Xue-jian, GANG Jian-ming, ZHANG Wen-jiao. NUMERICAL SIMULATION OF BLAST-RESISTANCE OFAFRP-STRENGTHENED REINFORCED CONCRETE BEAMS[J]. Fiber Reinforced Plastics/Composites, 2018, 0(6): 54-61.

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