An elastic-plastic analysis of interference fit connection

2nd International Workshop on Materials Science and Mechanical Engineering

机械制造;材料科学

Jiang, J.F.^1 ; Bi, Y.B.^2

Qianjiang College, Hangzhou Normal University, Hangzhou

310036, China^1

Department of Mechanical Engineering, Zhejiang University, Hangzhou

310027, China^2

关键词: Aircraft structure;    Elastic-plastic analysis;    Engineering calculation;    Engineering practices;    Interference fit;    Plastic zone radius;    Theoretical derivations;    Theoretical formula;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/504/1/012071/pdf
DOI  :  10.1088/1757-899X/504/1/012071

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Interference fit connection technique can effectively improve the fatigue life of aircraft structure. Considering the engineering practice, in this paper, the pin treated as an elastic deformed body is introduced in the analysis of interference fit connection. In the theoretical derivation, we obtain the contact stress between the hole and pin, the interference fit size of the elastic limit, and also the relationship between the plastic zone radius and interference fit size. At the same time, the finite element model is established, and the numerical simulation is conducted. By comparing theoretical and finite element results, the theoretical formulas are verified, which can be used furtherly in quick engineering calculation.