Axisymmetric Stress Analysis and Strength of Bonded Shrink-fitted Joints of Solid Shafts Subjected to Torsional Loads.

Yoneno, Masahiro; Sawa, Toshiyuki; Motegi, Yoichi

doi:10.1299/kikaia.63.2243

Cited by 2 publications

(5 citation statements)

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“…, are unknown coefficients determined from the boundary conditions Eqs. (1)- (5). Then, the 30N+8 simultaneous equations are obtained, where N is a number of the terms in the series.…”

Section: Theoretical Analysismentioning

confidence: 99%

“…The interface stress characteristics of epoxy-steel composite parts, such as singular stresses, are important factors in designing composite parts. Some researches have been carried out on the stress characteristics in composite joints [1][2][3][4][5][6][7][8][9]. Besides, some studies [10][11][12][13][14][15][16][17] have been carried out on the contact stress distributions in mechanical structures.…”

Section: Introductionmentioning

confidence: 99%

“…Besides, some studies [10][11][12][13][14][15][16][17] have been carried out on the contact stress distributions in mechanical structures. However, only a very few researches have been performed on the stress distribution and the strength of composite cylinders which consist of low strength materials and high strength materials [1][2][3][4][5]. In other words, researches on the interface stress distributions and the strength estimations in composite cylinders have not yet been carried out in detail.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, it is necessary to examine the interface stress characteristics of composite parts combining epoxy with steel (metal), which have been widely applied in practice. The authors have investigated the interface stress distributions and the strength of bonded shrink fitted joints under torsional and push-off loads [5,9]. In addition, the interface stress characteristics of the joints with composite cylinders subjected to torsional loads have been studied [18].…”

Section: Introductionmentioning

confidence: 99%

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Axisymmetrical Stress and Strength Analyses of Epoxy-Steel Composite Cylinders under Push-off Loads

Liao

Sawa

Hasegawa

2010

JMMP

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The interface stress distributions in composite cylinders of steel (solid cylinder) and epoxy (hollow cylinder) under push-off loads are analyzed using axisymmetrical theory of elasticity as a three-body contact problem. In the numerical calculations, the effects of Young's modulus and the diameter of solid cylinder on the interface stress distribution are examined. In addition, the effects of the diameter of supported hollow cylinder and the stress distribution due to the applied push-off loads are also examined. It is found that the normal stress at the interfaces increases as Young's modulus of solid cylinder decreases, the diameter of solid cylinder and the diameter of supported hollow cylinder increase. It is also found that the shear stress at the interfaces increases as the diameter of supported hollow cylinder increases, Young's modulus and the diameter of solid cylinder decrease. Singular stresses occur at the edges of the interfaces. A valid method for estimating the singularity is proposed and the discussion is made. Using the interfaces stresses obtained from the numerical analysis and analogous tests, the push-off strength of composite cylinders is estimated. The experiments to measure composite cylinders strength are carried out. It is seen that a rupture initiates at the lower edge of the interface area when the push-off loads are applied to the upper end of solid cylinder. For verification of the present analysis of the interface stress distributions, finite-element method (FEM) is also carried out. The numerical results of the interface stress distributions and the strength are in fairly good agreement with the experimental results and the FEM results. The axisymmetrical theory of elasticity is more rational compared to the shear lag theory in examining the stress singularity and considering the normal stress and shear stress at the interfaces at the same time. Finally, as an example, it is observed that the weight of composite cylinders is lighter by 48.1% than that of the structure with the same of steel material for obtaining the same strength.

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“…, are unknown coefficients determined from the boundary conditions Eqs. (1)- (5). Then, the 30N+8 simultaneous equations are obtained, where N is a number of the terms in the series.…”

Section: Theoretical Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Axisymmetrical Stress and Strength Analyses of Epoxy-Steel Composite Cylinders under Push-off Loads

Liao

Sawa

Hasegawa

2010

JMMP

Self Cite

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“…However, they have not yet been researched in detail. Some papers have carried out on the composite joints [1][2][3][4][5][6][7][8][9]. However, few researchers have been performed on the stress distribution and the strength of composite cylinders which consist of low strength materials and high strength materials [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Axisymmetrical Stress and Strength Analysis of Epoxy-Steel Composite Cylinders under Torsional Loads

Liao

Sawa

Hasegawa

2010

JMMP

Self Cite

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Epoxy-Steel composites have been used widely for lightening and strengthening mechanical structures. This paper deals with the stress analysis and strength estimation of epoxy-steel composite joint in which a hollow cylinder (epoxy) is fitted at the outside surface of a solid cylinder (steel) subjected to torsional loads. The interface stress distributions in the epoxy-steel composite cylinders under external torsion are analyzed using an axisymmetrical theory of elasticity as a two-body contact problem. In the numerical calculations, the effects of Young's modulus and the diameter of the solid cylinder on the interface stress distributions are examined. It is found that the shear stress increases as Young's modulus and the diameter of the solid cylinder decrease. A valid method for estimating the singularity is proposed. Using the interface stress distributions and analogous tests, the joint strength is predicted. In addition, the values of the joint strength were obtained experimentally. It is seen that a rupture initiates from the upper edge of the interface area when the torsion is applied to the upper end of the solid cylinder. For verification of the present analysis, FEM calculations are carried out. The numerical results are in fairly good agreements with the experimental results and the FEM results.

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Axisymmetric Stress Analysis and Strength of Bonded Shrink-fitted Joints of Solid Shafts Subjected to Torsional Loads.

Cited by 2 publications

References 0 publications

Axisymmetrical Stress and Strength Analyses of Epoxy-Steel Composite Cylinders under Push-off Loads

Axisymmetrical Stress and Strength Analyses of Epoxy-Steel Composite Cylinders under Push-off Loads

Axisymmetrical Stress and Strength Analysis of Epoxy-Steel Composite Cylinders under Torsional Loads

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