Stress Intensity Factors for Thick-walled Cylinder under Interference Fit

Jun Ying, Zhaojun Yang, Chuanhai Chen, Xiaoxu Li, H. Tian
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引用次数: 1

Abstract

In this study, the stress intensity factors for the inner surface crack of the external layer of a thick-walled cylinder under interference fit are analysed. Given the material defects and incorrect assembly operations, the radial penetrating cracks of thick-walled cylinder under interference fit tend to occur under the action of contact pressure, but no mature model is available at present. For this, the finite element model of the 2D model is established using finite element method, and the stress intensity factors of the cracks under various parameters are obtained. The obtained stress intensity factors are polynomially fitted, and the equation for the stress intensity factors of the cracks is finally obtained, which has a good fitting effect and facilitates engineering application and subsequent in-depth study.
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过盈配合下厚壁圆柱的应力强度因子
本文对过盈配合条件下厚壁圆筒外表面内表面裂纹的应力强度因子进行了分析。由于材料缺陷和不正确的装配操作,过盈配合下厚壁圆筒容易在接触压力作用下产生径向穿透裂纹,但目前尚无成熟的模型。为此,采用有限元法建立了二维模型的有限元模型,得到了不同参数下裂纹的应力强度因子。对得到的应力强度因子进行多项式拟合,最终得到裂缝应力强度因子方程,拟合效果良好,便于工程应用和后续的深入研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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