STUDY ON BIAXIAL TENSION OF CRACKED STEEL PLATES REINFORCED BY CFRP PLATES

Abstract

Abstract: The failure process of steel plates under biaxial tension is simulated by virtual fracture closure method. The reinforced plan is determined by reducing the stress intensity factor of crack. Load-displacement curves of the reinforced specimen and unreinforced specimen under biaxial tension are compared by FEM. Finally, the reinforced plan and simulation method are verified by experimental results. The results show virtual fracture closure method is very effective to simulate the developing progress of crack under biaxial tension. Bearing capacities of original steel structure can be basically recovered by using CFRP. The biaxial steel plates reinforced by CFRP is obviously increased to an extent. This method can be used to reinforce steel with composite crack.

Key words: CFRP, reinforce steel, biaxial tension, crack

CLC Number:

TB332

WU Jian,ZHANG Tong-tong,LI Hong-yun,WANG Wei-bo. STUDY ON BIAXIAL TENSION OF CRACKED STEEL PLATES REINFORCED BY CFRP PLATES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(12): 23-27.

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