[Objectives] In order to investigate the ultimate strength of CFRP-reinforced cracked stiffened panel in ship structure repair process,[Methods] in this paper,nonlinear finite element method is used to analyze the ultimate strength of CFRP-reinforced cracked stiffened panels subjected to axial compressive loads. Based on CFRP-reinforced cracked stiffened panel model,we compare the simulation results with the recorded test results,to verify the accuracy of the proposed method. By using double-side CFRP -reinforced cracked stiffened panel as the example,we study the ultimate strength of stiffened panel,and the peeling mechanism and the stress of the adhesive layer were analyzed.[Results] The results show that the ultimate strength of CFRP-reinforced cracked stiffened panels is significantly increased,and is close to the ultimate strength of stiffened panel with geometric initial defects;CFRP repairs the debonding of cracked stiffened panel after the ultimate strength is achieved.[Conclusions] The repair of the cracked stiffened panel by using CFRP can enhance the ultimate strength. It may provide guidance for the ships and offshore structure repair.


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    Title :

    Simulation study on ultimate strength of CFRP-reinforced cracked stiffened panels


    Contributors:
    Shi Xinghua (author) / Ren Hengjia (author) / Xu Wenqiang (author) / Zhang Jing (author) / Wu Haijian (author)


    Publication date :

    2019




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown





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