Influence of interference fit size on hole deformation and residual stress in hi-lock bolt insertion

Jiang, Jiefeng; Bi, Yang; Dong, Huiyue; Ke, Yinglin; Fan, Xintian; Du, Kunpeng

doi:10.1177/0954406214531250

Cited by 29 publications

(18 citation statements)

References 13 publications

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“…The model is shown in Figure 2 . Some studies have shown that the influence of interference connection is very small beyond 3 times the radius around the hole [ 12 ]. Therefore, the thickness of the aluminum alloy plate used in the model is 5 mm, and its diameter is 20 mm.…”

Section: Methodsmentioning

confidence: 99%

Study on Interference Connection Based on Shape Recovery of NiTiNb Shape Memory Alloy

et al. 2021

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Interference connection is an effective method for improving the fatigue life of bolt connections. In this paper, a new method of interference connection was designed based on the shape memory effect of shape memory alloy. Using the method of numerical simulation, a finite element model was established to analyze the stress–strain rule of the bolt and the hole wall under different interference fit sizes. The results show that the stress concentration is formed at the orifice of the connecting plate. When the interference fit size is less than 1%, the connection hole has elastic deformation. When the interference fit size is 1.5%, the hole wall has plastic deformation. When the interference fit size is 2.5%, the maximum stress on the connecting plate is close to the tensile limit of the material. If the interference fit size continues to increase, the strength of the connection structure will be damaged. The connection experiments with different interference fit size were designed, and the interference force was calculated by the pull-out force. The experimental results were compared with the numerical simulation results. The change trend of the interference force with the interference fit size is consistent, which verifies the rationality of the finite element simulation.

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Section: Methodsmentioning

confidence: 99%

Study on Interference Connection Based on Shape Recovery of NiTiNb Shape Memory Alloy

et al. 2021

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“…High compressive stresses were observed around the hole in tangential direction because of interference fit that shows fatigue life increase effect. 9 Jiang et al 10 studied the influence of interference fit value on hole deformation and residual stresses in a hi-lock bolt (Ti alloy) inserted into an aluminum alloy lap specimen. A two-dimensional (2D) FE model of the process was also developed revealing consistency in the analytical forecasts and experimental data.…”

Section: Introductionmentioning

confidence: 99%

“…A quantitative analysis of the insertion force history, non-uniform hole expansion, protuberance and residual stresses of the interference fit was presented. 10 A new theoretical model to predict the stress distribution in interference fits was proposed by Wang et al 11 In this simplified model, it was assumed that the problem was plane strain and a non-uniform linear load acted on a semi-infinite plane. Stress distributions of different material pairs under full contact conditions were also analyzed.…”

Section: Introductionmentioning

confidence: 99%

Investigation of insert-hole interference fit influence on downhole drilling bit failure

Saeedi

Sadeghi

2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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Down-the-hole drilling is a reliable method for drilling in medium-to-hard geological structures. The insert-hole fitting interference value emerges as one of the most important factors of down-the-hole drilling bit life. In this study, fatigue tests were conducted using a tungsten carbide pin press-fitted into a hole in the specimens of DIN 1.6580 steel (which is used for manufacturing the bit body) to quantify the effect of interference value on the bit body failure. Then, the process of bit-rock collision was simulated using three-dimensional finite element method taking into account the residual stresses in the insert and bit body to determine the optimal interference value. Simulations were performed considering the rotary motion of the bit in addition to impact for a single-insert as well as a commercial 3.5 inch bit. Results showed that the interference value influences fatigue life significantly. Also, the velocity and angle of impact have considerable influence on body stresses. Results of this study can greatly assist the design of insert-hole manufacturing tolerances in down-the-hole bits.

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“…In the thermoplasticity respect, Tan et al. 10–15 discussed the residual stress distribution laws. Zwierczyk et al.…”

Section: Introductionmentioning

confidence: 99%

“…Cui et al 9 investigated the temperature distribution laws of the multidisc friction pairs. In the thermoplasticity respect, Tan et al [10][11][12][13][14][15] discussed the residual stress distribution laws. Zwierczyk et al 16 studied thermal stress induced by friction between wheel and rail.…”

Section: Introductionmentioning

confidence: 99%

Elastic-plastic analysis for wet multidisc brake during repeated braking

Rui

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part C:

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To reveal the mechanism and evolution laws of the braking performance declining from heat load in the repeated braking applied for wet multidisc brake, a finite element analysis was carried out by using the bidirectional thermal-structure coupling method. Based on the fundamental principles of the energy conservation and virtual work principle, the elemental equations between temperature and heat load, and deformation displacement and load with heat transferring boundary conditions and heat-structure interaction were derived. Taking a steel disk in the brake for example, the deformation state of its elements, and the starting time, the location, the severity, and evolution laws of the plastic deformation were analyzed and demonstrated by using dimensionless stress distribution contours. The area in contact along the interface and the ratio of the element numbers to produce plastic deformation to the total element numbers on the steel disk were described by contact ratio and plasticity ratio, respectively. Moreover, the results under the repeated braking case were compared with that under the lasting braking case, which indicates that the influence of the temperature load on the performance declining of the repeated braking case is much lower than one of the lasting braking case, and the temperature is lower than 40 K and the plasticity ratio is smaller than 0.35 after the braking time is longer than 350 s. The conducted finite element analyses provided the theoretical fundamentals for the design and the application of the brake in the heavy type of trucks.

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Influence of interference fit size on hole deformation and residual stress in hi-lock bolt insertion

Cited by 29 publications

References 13 publications

Study on Interference Connection Based on Shape Recovery of NiTiNb Shape Memory Alloy

Study on Interference Connection Based on Shape Recovery of NiTiNb Shape Memory Alloy

Investigation of insert-hole interference fit influence on downhole drilling bit failure

Elastic-plastic analysis for wet multidisc brake during repeated braking

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