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Finite element analysis on emergency repair for wing panel of aircraft penetrated by fragments

LI Yan,YU Kejie,LI Xiaolei(Dept. of Aeronautical Repair Eng.,The First Aeronautical Institute of AirForce,He’nan Xinyang 464000,China)  
With the emergency repair problem that wing panel of aircraft is penetrated by missile fragments,the damaged wing panel of an aircraft is taken as an example to calculate the strength after rivet joint repair according to the finite element model of the whole aircraft. The element type of patch is shell element and the element type of rivet is beam element. The results show the corresponding relationships exist between rivet rows and load-bearing capacity under the certain rivet spacing,row distance and edge distance. The corresponding relationships provide the theoretical reference to make a reasonable case for emergent repair on actual war field.
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