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Calculation method of radial stress and deformation
on conic threaded connections with interference fit |
| Shoujun CHEN,Qiang LI,Qi AN, |
| School of Mechanical
and Power Engineering, East China University of Science and Technology,
Shanghai 200237, China; |
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Abstract This paper presents a calculation method for radial stress distribution and deformation on conic threaded connections with interference fit. Based on elastic mechanics, a new calculation model is established using the thick-walled-cylindrical theory. A sample calculation for API 88.9 mm conic threaded connection indicates that the method proposed in this paper is reasonable, and the finite element analysis (FEA) method is used to validate the proposed method. The results obtained by the proposed method and FEA method are identical. The model offers a new way of calculating the radial stress and deformation on conic thread connections with interference fit.
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| Keywords
conic threaded connections
interference fit
radial stress
deformation
finite element analysis (FEA)
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Issue Date: 05 September 2010
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