A Research on Fatigue Fracture Performance of Manganese Containing Metal Skin Riveted Structures Using Finite Element Analysis
With the rapid development of computer network technology,finite element analysis technology has been widely applied in riveting connection technology,playing an important role in the design of mechanical connection structures.To improve the accuracy of finite element analysis in solving fracture parameters of manganese containingin metal skin riveted structures,interpolation functions are introduced into the finite element analysis method.A finite element analysis model is derived and verified through simulation.The simulation results show that under stress,displacement of 0.02 mm and 0.006 mm are generated in the x and y directions,respectively.The stress is mainly concentrated at the connection between the rivet and the skin,and the hole circumference of the riveted structure will experience an internal warping situation of first sinking and then rising.The maximum stresses that the upper and lower wall panels can withstand the stress of SVM1 and SVM2.It has increased by 63 MPa and 61 MPa,respectively.Under external loads,cracks will first appear at the connection between the lower wall panel and the rivet structure.The comprehensive stress decreases with the increase of crack length,and the initial stress value of 271 MPa is 83.4％of the tensile strength of the rivet material.The fatigue fracture propagation stress of the riveted structure is relatively small and the comprehensive initial stress of the rivet material is relatively large.The above results indicate that the study of finite element analysis in the fatigue fracture performance of metal skin riveted structures has certain reference value in the field of metal skin riveted structure fracture research.
Finite element analysisRiveted structureFatigue fractureManganese containing metal skinFracture parameters
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