volume 1 issue 1

Finite Element Based Member Stiffness Evaluation of Axisymmetric Bolted Joint (140013)


Abstract : For a reliable design of bolted joints,it is necessary to evaluat e the actual fraction of the external load transmitted through the bolt. The stiffness of the bolt and the me mber of the joint decide the fractions of external load shared by the bolt and the member. Bolt stiffness can be eval uated simply by assuming the load flow to be uniform across the thickness and the deformation is homogeneous. Then,bolt may be modeled as a tension member and the stiffness can be easily evaluated. But,the evalua tion of the member stiffness is difficult because of the heterogeneous deformation. In the present work,joint materials are assumed to be isotropic and homogeneous,and linear elastic axisymmetric finite element ana lysis was performed to evaluate the member stiffness. Uniform displacement and uniform pressure assumptions are employed in idealizing the boundary conditions. Wide ranges of bolt sizes,joint thicknesses,and material properties are considered in the analysis to evaluate characteristic behavior of member stiffness. Empiric al formulas for the member stiffness evaluation are proposed using dimensionless parameters. The results obtained are com pared with the results available in the literature.

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Downloads : 1664

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Modified Date : 2014-09-20

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Mr. Chetan Chirmurkar , Prof. Mr. A. P. Deshmukh , "Finite Element Based Member Stiffness Evaluation of Axisymmetric Bolted Joint", IJIERT - International Journal of Innovations in Engineering Research and Technology, volume 1 issue 1, ISSN : 2394-3696, Page No.